/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=NARROWEST --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/Problem14_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:47:40,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:47:40,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:47:40,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:47:40,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:47:40,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:47:40,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:47:40,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:47:40,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:47:40,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:47:40,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:47:40,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:47:40,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:47:40,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:47:40,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:47:40,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:47:40,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:47:40,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:47:40,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:47:40,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:47:40,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:47:40,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:47:40,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:47:40,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:47:40,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:47:40,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:47:40,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:47:40,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:47:40,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:47:40,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:47:40,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:47:40,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:47:40,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:47:40,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:47:40,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:47:40,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:47:40,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:47:40,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:47:40,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:47:40,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:47:40,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:47:40,632 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 [2020-10-13 08:47:40,674 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:47:40,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:47:40,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:47:40,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:47:40,676 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:47:40,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:47:40,677 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:47:40,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:47:40,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:47:40,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:47:40,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:47:40,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:47:40,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:47:40,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:47:40,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:47:40,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:47:40,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:47:40,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:47:40,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:47:40,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:47:40,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:47:40,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:47:40,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:47:40,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:47:40,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:47:40,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:47:40,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:47:40,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:47:40,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:47:40,681 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:47:40,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:47:40,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:47:40,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:47:40,984 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:47:40,985 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:47:40,985 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label10.c [2020-10-13 08:47:41,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c6c51bc5/e29a8439d6fd4ddc871ad439e4ddd5e3/FLAG78f047d18 [2020-10-13 08:47:41,619 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:47:41,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label10.c [2020-10-13 08:47:41,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c6c51bc5/e29a8439d6fd4ddc871ad439e4ddd5e3/FLAG78f047d18 [2020-10-13 08:47:41,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c6c51bc5/e29a8439d6fd4ddc871ad439e4ddd5e3 [2020-10-13 08:47:41,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:47:41,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:47:41,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:47:41,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:47:41,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:47:41,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:47:41" (1/1) ... [2020-10-13 08:47:41,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:41, skipping insertion in model container [2020-10-13 08:47:41,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:47:41" (1/1) ... [2020-10-13 08:47:41,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:47:41,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:47:42,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:47:42,717 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:47:42,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:47:42,859 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:47:42,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42 WrapperNode [2020-10-13 08:47:42,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:47:42,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:47:42,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:47:42,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:47:42,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:43,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:47:43,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:47:43,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:47:43,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:47:43,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (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 [2020-10-13 08:47:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:47:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:47:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:47:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:47:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:47:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:47:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:47:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:47:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:47:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:47:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:47:44,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:47:44,539 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:47:44,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:47:44 BoogieIcfgContainer [2020-10-13 08:47:44,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:47:44,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:47:44,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:47:44,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:47:44,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:47:41" (1/3) ... [2020-10-13 08:47:44,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253cf839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:47:44, skipping insertion in model container [2020-10-13 08:47:44,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (2/3) ... [2020-10-13 08:47:44,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253cf839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:47:44, skipping insertion in model container [2020-10-13 08:47:44,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:47:44" (3/3) ... [2020-10-13 08:47:44,556 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label10.c [2020-10-13 08:47:44,567 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:47:44,576 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:47:44,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:47:44,618 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:47:44,619 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:47:44,619 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:47:44,619 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:47:44,619 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:47:44,620 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:47:44,620 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:47:44,620 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:47:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:47:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 08:47:44,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:44,653 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] [2020-10-13 08:47:44,654 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:44,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:44,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1708821435, now seen corresponding path program 1 times [2020-10-13 08:47:44,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:44,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795868993] [2020-10-13 08:47:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:44,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 08:47:45,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-13 08:47:45,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:47:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:47:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:47:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:47:45,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:45,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:47:45,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:45,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:47:45,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:45,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795868993] [2020-10-13 08:47:45,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:47:45,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:47:45,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034772962] [2020-10-13 08:47:45,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:47:45,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:45,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:47:45,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:47:45,362 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:47:47,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:47,087 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-13 08:47:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:47,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-13 08:47:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:47,107 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:47:47,107 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:47:47,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:47,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:47:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:47:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:47:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-13 08:47:47,200 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 34 [2020-10-13 08:47:47,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:47,201 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-13 08:47:47,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:47:47,201 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-13 08:47:47,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 08:47:47,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:47,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:47,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:47:47,209 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:47,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:47,210 INFO L82 PathProgramCache]: Analyzing trace with hash -2069400603, now seen corresponding path program 1 times [2020-10-13 08:47:47,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:47,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401665171] [2020-10-13 08:47:47,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:47,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:47,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:47,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:47:47,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-13 08:47:47,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:47,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:47:47,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 08:47:47,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:48,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:48,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:48,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:48,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:48,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:47:48,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:48,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:48,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 08:47:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:48,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:48,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:48,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:47:48,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:47:48,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:47:48,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:48,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401665171] [2020-10-13 08:47:48,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:48,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:48,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992903857] [2020-10-13 08:47:48,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:48,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:48,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:48,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:48,220 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 5 states. [2020-10-13 08:47:49,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:49,827 INFO L93 Difference]: Finished difference Result 1118 states and 1662 transitions. [2020-10-13 08:47:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:49,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-13 08:47:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:49,837 INFO L225 Difference]: With dead ends: 1118 [2020-10-13 08:47:49,837 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:47:49,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:47:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:47:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:47:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:47:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 999 transitions. [2020-10-13 08:47:49,882 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 999 transitions. Word has length 103 [2020-10-13 08:47:49,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:49,883 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 999 transitions. [2020-10-13 08:47:49,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:47:49,884 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 999 transitions. [2020-10-13 08:47:49,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-13 08:47:49,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:49,893 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:49,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:47:49,894 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:49,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:49,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1890100801, now seen corresponding path program 1 times [2020-10-13 08:47:49,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:49,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137885172] [2020-10-13 08:47:49,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:49,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:50,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:50,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:50,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:54,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:54,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-13 08:47:54,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:47:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4460 [2020-10-13 08:47:54,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-13 08:47:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:47:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:54,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:54,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:54,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:54,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:54,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:54,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:47:54,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:54,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:54,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:54,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:54,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:54,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:47:54,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:54,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:47:54,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:54,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:54,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:54,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:54,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:54,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:47:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:54,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:54,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:54,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:47:54,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:47:54,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:47:54,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:47:54,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137885172] [2020-10-13 08:47:54,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:54,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:54,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530738821] [2020-10-13 08:47:54,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:54,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:54,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:54,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:54,774 INFO L87 Difference]: Start difference. First operand 744 states and 999 transitions. Second operand 5 states. [2020-10-13 08:47:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:55,825 INFO L93 Difference]: Finished difference Result 1498 states and 2019 transitions. [2020-10-13 08:47:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:55,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-10-13 08:47:55,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:55,831 INFO L225 Difference]: With dead ends: 1498 [2020-10-13 08:47:55,832 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:47:55,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:47:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:47:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:47:55,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:47:55,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 997 transitions. [2020-10-13 08:47:55,864 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 997 transitions. Word has length 186 [2020-10-13 08:47:55,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:55,865 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 997 transitions. [2020-10-13 08:47:55,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:47:55,866 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 997 transitions. [2020-10-13 08:47:55,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-13 08:47:55,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:55,870 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:55,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:47:55,871 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:55,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:55,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1452068040, now seen corresponding path program 1 times [2020-10-13 08:47:55,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:55,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023486704] [2020-10-13 08:47:55,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:57,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:58,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-13 08:47:58,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:47:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2973 [2020-10-13 08:47:58,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 08:47:58,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 08:47:58,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:58,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:58,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:58,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:58,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:58,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:47:58,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:58,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:59,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:59,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:59,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:47:59,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:59,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:59,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:59,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:59,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:47:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:59,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:59,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:59,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:47:59,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:47:59,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:47:59,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:47:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:47:59,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023486704] [2020-10-13 08:47:59,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:59,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:59,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095465268] [2020-10-13 08:47:59,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:59,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:59,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:59,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:59,204 INFO L87 Difference]: Start difference. First operand 744 states and 997 transitions. Second operand 5 states. [2020-10-13 08:48:00,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:00,315 INFO L93 Difference]: Finished difference Result 1511 states and 2028 transitions. [2020-10-13 08:48:00,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:00,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 197 [2020-10-13 08:48:00,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:00,324 INFO L225 Difference]: With dead ends: 1511 [2020-10-13 08:48:00,324 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:48:00,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:00,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:48:00,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:48:00,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:48:00,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 995 transitions. [2020-10-13 08:48:00,350 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 995 transitions. Word has length 197 [2020-10-13 08:48:00,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:00,350 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 995 transitions. [2020-10-13 08:48:00,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:00,350 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 995 transitions. [2020-10-13 08:48:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-13 08:48:00,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:00,353 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:00,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:48:00,354 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:00,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:00,354 INFO L82 PathProgramCache]: Analyzing trace with hash 981131935, now seen corresponding path program 1 times [2020-10-13 08:48:00,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:00,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313875186] [2020-10-13 08:48:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:04,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 08:48:04,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:48:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3685 [2020-10-13 08:48:04,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:04,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:04,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:48:04,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:48:04,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:04,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:04,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:04,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:04,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:04,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:04,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:04,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:04,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:04,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:04,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:04,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:04,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:04,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:04,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:04,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:04,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:48:04,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:04,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:04,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:04,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:04,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:04,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:04,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:48:04,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:48:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:04,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313875186] [2020-10-13 08:48:04,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:04,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:04,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835404508] [2020-10-13 08:48:04,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:04,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:04,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:04,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:04,349 INFO L87 Difference]: Start difference. First operand 744 states and 995 transitions. Second operand 5 states. [2020-10-13 08:48:05,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:05,608 INFO L93 Difference]: Finished difference Result 1509 states and 2022 transitions. [2020-10-13 08:48:05,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:05,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2020-10-13 08:48:05,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:05,614 INFO L225 Difference]: With dead ends: 1509 [2020-10-13 08:48:05,614 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:48:05,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:05,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:48:05,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:48:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:48:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 993 transitions. [2020-10-13 08:48:05,645 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 993 transitions. Word has length 202 [2020-10-13 08:48:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:05,645 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 993 transitions. [2020-10-13 08:48:05,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 993 transitions. [2020-10-13 08:48:05,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-13 08:48:05,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:05,649 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:05,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:48:05,649 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:05,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:05,650 INFO L82 PathProgramCache]: Analyzing trace with hash -492429820, now seen corresponding path program 1 times [2020-10-13 08:48:05,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:05,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399220334] [2020-10-13 08:48:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:05,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:05,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:05,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:06,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:09,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:09,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-13 08:48:09,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:48:09,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3898 [2020-10-13 08:48:09,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-13 08:48:09,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:48:09,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:09,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:09,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:09,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:09,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:09,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:09,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:09,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:09,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:09,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:09,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:09,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:09,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:09,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:09,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:09,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:09,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:09,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:09,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:09,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:09,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:48:09,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:09,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 08:48:09,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:09,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:09,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:09,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:48:09,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:09,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [399220334] [2020-10-13 08:48:09,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:09,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:09,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048733795] [2020-10-13 08:48:09,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:09,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:09,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:09,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:09,917 INFO L87 Difference]: Start difference. First operand 744 states and 993 transitions. Second operand 5 states. [2020-10-13 08:48:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:11,296 INFO L93 Difference]: Finished difference Result 1512 states and 2021 transitions. [2020-10-13 08:48:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:11,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2020-10-13 08:48:11,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:11,305 INFO L225 Difference]: With dead ends: 1512 [2020-10-13 08:48:11,306 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:48:11,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:48:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:48:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:48:11,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 991 transitions. [2020-10-13 08:48:11,346 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 991 transitions. Word has length 207 [2020-10-13 08:48:11,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:11,347 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 991 transitions. [2020-10-13 08:48:11,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:11,347 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 991 transitions. [2020-10-13 08:48:11,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-13 08:48:11,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:11,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:11,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:48:11,355 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:11,356 INFO L82 PathProgramCache]: Analyzing trace with hash 179733353, now seen corresponding path program 1 times [2020-10-13 08:48:11,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:11,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402272787] [2020-10-13 08:48:11,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:12,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:13,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:13,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-13 08:48:13,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2299 [2020-10-13 08:48:13,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:48:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 08:48:13,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:13,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:13,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:13,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:13,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:13,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:13,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:13,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:13,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:13,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:13,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:13,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:13,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:13,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:13,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:13,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 08:48:13,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:48:13,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:48:14,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402272787] [2020-10-13 08:48:14,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:14,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:48:14,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681034710] [2020-10-13 08:48:14,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:48:14,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:48:14,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:14,073 INFO L87 Difference]: Start difference. First operand 744 states and 991 transitions. Second operand 6 states. [2020-10-13 08:48:16,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:16,292 INFO L93 Difference]: Finished difference Result 2222 states and 3072 transitions. [2020-10-13 08:48:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:48:16,293 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 213 [2020-10-13 08:48:16,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:16,302 INFO L225 Difference]: With dead ends: 2222 [2020-10-13 08:48:16,303 INFO L226 Difference]: Without dead ends: 1484 [2020-10-13 08:48:16,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:48:16,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2020-10-13 08:48:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1298. [2020-10-13 08:48:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:48:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1765 transitions. [2020-10-13 08:48:16,348 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1765 transitions. Word has length 213 [2020-10-13 08:48:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:16,348 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1765 transitions. [2020-10-13 08:48:16,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:48:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1765 transitions. [2020-10-13 08:48:16,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-13 08:48:16,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:16,353 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:16,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:48:16,353 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:16,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:16,354 INFO L82 PathProgramCache]: Analyzing trace with hash -572253381, now seen corresponding path program 1 times [2020-10-13 08:48:16,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:16,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979599342] [2020-10-13 08:48:16,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:16,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:16,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:16,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:18,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:18,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:21,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:21,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-13 08:48:21,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:21,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4893 [2020-10-13 08:48:21,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 246 [2020-10-13 08:48:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:48:21,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:21,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:21,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:21,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:21,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:21,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:21,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:21,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:21,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:21,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:21,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:21,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:21,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:21,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:21,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:21,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:21,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:21,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:21,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:21,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:48:21,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:21,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 08:48:21,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:21,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:21,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:21,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:48:21,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:21,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979599342] [2020-10-13 08:48:21,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:21,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:21,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103282420] [2020-10-13 08:48:21,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:21,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:21,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:21,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:21,789 INFO L87 Difference]: Start difference. First operand 1298 states and 1765 transitions. Second operand 5 states. [2020-10-13 08:48:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:22,841 INFO L93 Difference]: Finished difference Result 2605 states and 3558 transitions. [2020-10-13 08:48:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:22,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-10-13 08:48:22,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:22,849 INFO L225 Difference]: With dead ends: 2605 [2020-10-13 08:48:22,849 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:48:22,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:22,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:48:22,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:48:22,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:48:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1760 transitions. [2020-10-13 08:48:22,898 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1760 transitions. Word has length 268 [2020-10-13 08:48:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:22,898 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1760 transitions. [2020-10-13 08:48:22,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1760 transitions. [2020-10-13 08:48:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-13 08:48:22,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:22,904 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:22,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:48:22,904 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:22,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:22,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1060986227, now seen corresponding path program 1 times [2020-10-13 08:48:22,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:22,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539289279] [2020-10-13 08:48:22,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:22,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:23,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:23,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:24,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:25,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:25,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-13 08:48:25,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:25,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3012 [2020-10-13 08:48:25,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:25,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:25,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-13 08:48:25,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 08:48:25,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:26,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:26,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:26,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:48:26,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 08:48:26,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-13 08:48:26,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:48:26,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:26,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539289279] [2020-10-13 08:48:26,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:26,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:26,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356488904] [2020-10-13 08:48:26,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:26,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:26,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:26,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:26,398 INFO L87 Difference]: Start difference. First operand 1298 states and 1760 transitions. Second operand 5 states. [2020-10-13 08:48:27,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:27,518 INFO L93 Difference]: Finished difference Result 2616 states and 3557 transitions. [2020-10-13 08:48:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:27,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 272 [2020-10-13 08:48:27,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:27,526 INFO L225 Difference]: With dead ends: 2616 [2020-10-13 08:48:27,526 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:48:27,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:48:27,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:48:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:48:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1753 transitions. [2020-10-13 08:48:27,566 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1753 transitions. Word has length 272 [2020-10-13 08:48:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:27,567 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1753 transitions. [2020-10-13 08:48:27,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1753 transitions. [2020-10-13 08:48:27,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-13 08:48:27,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:27,574 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 08:48:27,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:48:27,575 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:27,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:27,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1088845761, now seen corresponding path program 1 times [2020-10-13 08:48:27,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:27,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014963163] [2020-10-13 08:48:27,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:27,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:28,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:28,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:30,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:30,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-13 08:48:30,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:30,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2998 [2020-10-13 08:48:30,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:30,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:30,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 320 [2020-10-13 08:48:30,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 08:48:30,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:30,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:30,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:30,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:30,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:30,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:30,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:30,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:30,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:30,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:30,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:30,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:30,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:30,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:48:30,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:30,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:48:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:30,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:30,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:30,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:48:30,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:30,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 08:48:30,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:30,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 08:48:30,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 08:48:31,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014963163] [2020-10-13 08:48:31,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:31,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:48:31,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122229813] [2020-10-13 08:48:31,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:48:31,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:31,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:48:31,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:31,051 INFO L87 Difference]: Start difference. First operand 1298 states and 1753 transitions. Second operand 6 states. [2020-10-13 08:48:32,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:32,222 INFO L93 Difference]: Finished difference Result 2608 states and 3535 transitions. [2020-10-13 08:48:32,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:32,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 342 [2020-10-13 08:48:32,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:32,229 INFO L225 Difference]: With dead ends: 2608 [2020-10-13 08:48:32,230 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:48:32,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:48:32,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:48:32,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:48:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1750 transitions. [2020-10-13 08:48:32,271 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1750 transitions. Word has length 342 [2020-10-13 08:48:32,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:32,272 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1750 transitions. [2020-10-13 08:48:32,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:48:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1750 transitions. [2020-10-13 08:48:32,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-13 08:48:32,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:32,280 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 08:48:32,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:48:32,280 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:32,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:32,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1205873523, now seen corresponding path program 1 times [2020-10-13 08:48:32,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:32,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745316176] [2020-10-13 08:48:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:32,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:33,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:33,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:33,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:36,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 376 [2020-10-13 08:48:37,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:48:37,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 08:48:37,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 342 [2020-10-13 08:48:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:48:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:37,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:37,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:37,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:37,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:37,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:37,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:48:37,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:37,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:48:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:37,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:48:37,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:37,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 08:48:37,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:37,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:37,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:48:37,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-13 08:48:37,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745316176] [2020-10-13 08:48:37,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:37,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:37,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475988805] [2020-10-13 08:48:37,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:37,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:37,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:37,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:37,737 INFO L87 Difference]: Start difference. First operand 1298 states and 1750 transitions. Second operand 5 states. [2020-10-13 08:48:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:38,739 INFO L93 Difference]: Finished difference Result 2604 states and 3525 transitions. [2020-10-13 08:48:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:38,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 364 [2020-10-13 08:48:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:38,755 INFO L225 Difference]: With dead ends: 2604 [2020-10-13 08:48:38,755 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:48:38,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:48:38,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:48:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:48:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1747 transitions. [2020-10-13 08:48:38,794 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1747 transitions. Word has length 364 [2020-10-13 08:48:38,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:38,795 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1747 transitions. [2020-10-13 08:48:38,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:38,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1747 transitions. [2020-10-13 08:48:38,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-13 08:48:38,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:38,805 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 08:48:38,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:48:38,805 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:38,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1233911409, now seen corresponding path program 1 times [2020-10-13 08:48:38,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:38,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908710202] [2020-10-13 08:48:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:38,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:39,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:41,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:41,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-13 08:48:41,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2164 [2020-10-13 08:48:41,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:48:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-13 08:48:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:41,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:41,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:41,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:41,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:41,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:41,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:41,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:41,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:41,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:41,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:41,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:41,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-13 08:48:41,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:41,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:41,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:41,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:48:41,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:41,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:48:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:41,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:41,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:41,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:48:41,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:41,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-13 08:48:41,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:48:41,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 204 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:48:41,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908710202] [2020-10-13 08:48:41,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:41,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:41,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809071049] [2020-10-13 08:48:41,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:41,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:41,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:41,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:41,734 INFO L87 Difference]: Start difference. First operand 1298 states and 1747 transitions. Second operand 7 states. [2020-10-13 08:48:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:43,546 INFO L93 Difference]: Finished difference Result 3184 states and 4415 transitions. [2020-10-13 08:48:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:48:43,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-13 08:48:43,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:43,559 INFO L225 Difference]: With dead ends: 3184 [2020-10-13 08:48:43,559 INFO L226 Difference]: Without dead ends: 1892 [2020-10-13 08:48:43,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:48:43,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2020-10-13 08:48:43,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1868. [2020-10-13 08:48:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1868 states. [2020-10-13 08:48:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2507 transitions. [2020-10-13 08:48:43,624 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2507 transitions. Word has length 366 [2020-10-13 08:48:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:43,625 INFO L479 AbstractCegarLoop]: Abstraction has 1868 states and 2507 transitions. [2020-10-13 08:48:43,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:43,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2507 transitions. [2020-10-13 08:48:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-13 08:48:43,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:43,631 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:43,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:48:43,632 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:43,632 INFO L82 PathProgramCache]: Analyzing trace with hash 842328399, now seen corresponding path program 1 times [2020-10-13 08:48:43,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:43,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385305184] [2020-10-13 08:48:43,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:44,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:44,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:48,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:48,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-13 08:48:48,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 08:48:48,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 08:48:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:48:48,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:48,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:48,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:48,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:48,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:48,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:48,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:48,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:48,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:48,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:48,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 08:48:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:48,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 08:48:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:48,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:48,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:48,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:48,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:48:48,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 08:48:48,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:48:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 08:48:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:49,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:49,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:49,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:48:49,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:49,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:48:49,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:49,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:49,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:48:49,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:49,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 154 proven. 111 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-13 08:48:49,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385305184] [2020-10-13 08:48:49,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:49,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:48:49,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354976082] [2020-10-13 08:48:49,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:48:49,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:49,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:48:49,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:49,393 INFO L87 Difference]: Start difference. First operand 1868 states and 2507 transitions. Second operand 6 states. [2020-10-13 08:48:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:50,802 INFO L93 Difference]: Finished difference Result 3797 states and 5104 transitions. [2020-10-13 08:48:50,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:48:50,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 371 [2020-10-13 08:48:50,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:50,813 INFO L225 Difference]: With dead ends: 3797 [2020-10-13 08:48:50,813 INFO L226 Difference]: Without dead ends: 1902 [2020-10-13 08:48:50,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:48:50,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2020-10-13 08:48:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1868. [2020-10-13 08:48:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1868 states. [2020-10-13 08:48:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2495 transitions. [2020-10-13 08:48:50,863 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2495 transitions. Word has length 371 [2020-10-13 08:48:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:50,864 INFO L479 AbstractCegarLoop]: Abstraction has 1868 states and 2495 transitions. [2020-10-13 08:48:50,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:48:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2495 transitions. [2020-10-13 08:48:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-10-13 08:48:50,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:50,870 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:50,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:48:50,870 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:50,871 INFO L82 PathProgramCache]: Analyzing trace with hash 102892972, now seen corresponding path program 1 times [2020-10-13 08:48:50,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:50,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952972412] [2020-10-13 08:48:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:50,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:50,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:52,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:53,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:55,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:55,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 386 [2020-10-13 08:48:55,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 08:48:55,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:48:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:48:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:48:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:55,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:55,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:55,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:55,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:55,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:55,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:56,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:56,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:56,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:48:56,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:48:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:56,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:48:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:56,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:56,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:56,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:56,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:48:56,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:56,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-13 08:48:56,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:48:56,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:56,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:48:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:56,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:56,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:56,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:48:56,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:56,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:48:56,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:48:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 155 proven. 111 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 08:48:56,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952972412] [2020-10-13 08:48:56,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:56,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:56,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560663707] [2020-10-13 08:48:56,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:56,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:56,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:56,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:56,518 INFO L87 Difference]: Start difference. First operand 1868 states and 2495 transitions. Second operand 7 states. [2020-10-13 08:48:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:58,507 INFO L93 Difference]: Finished difference Result 3940 states and 5299 transitions. [2020-10-13 08:48:58,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:48:58,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 372 [2020-10-13 08:48:58,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:58,516 INFO L225 Difference]: With dead ends: 3940 [2020-10-13 08:48:58,516 INFO L226 Difference]: Without dead ends: 1888 [2020-10-13 08:48:58,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:48:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2020-10-13 08:48:58,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1868. [2020-10-13 08:48:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1868 states. [2020-10-13 08:48:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2146 transitions. [2020-10-13 08:48:58,569 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2146 transitions. Word has length 372 [2020-10-13 08:48:58,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:58,569 INFO L479 AbstractCegarLoop]: Abstraction has 1868 states and 2146 transitions. [2020-10-13 08:48:58,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:58,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2146 transitions. [2020-10-13 08:48:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-10-13 08:48:58,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:58,576 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:58,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:48:58,577 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:58,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:58,577 INFO L82 PathProgramCache]: Analyzing trace with hash -2032552267, now seen corresponding path program 1 times [2020-10-13 08:48:58,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:58,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117833328] [2020-10-13 08:48:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:58,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:58,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 459 [2020-10-13 08:49:03,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:03,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 08:49:03,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:49:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 270 [2020-10-13 08:49:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:03,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:03,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:03,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:03,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:03,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:03,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:03,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:03,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:49:03,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:03,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:03,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:49:03,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:03,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:49:03,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:03,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:03,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:49:03,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:03,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-13 08:49:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:03,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:04,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:04,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:04,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-13 08:49:04,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:49:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:04,786 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-10-13 08:49:05,039 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2020-10-13 08:49:05,326 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2020-10-13 08:49:05,533 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-10-13 08:49:05,745 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2020-10-13 08:49:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 312 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-13 08:49:06,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117833328] [2020-10-13 08:49:06,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:06,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:49:06,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419366804] [2020-10-13 08:49:06,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:49:06,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:06,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:49:06,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:49:06,688 INFO L87 Difference]: Start difference. First operand 1868 states and 2146 transitions. Second operand 13 states. [2020-10-13 08:49:07,479 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-13 08:49:07,709 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-10-13 08:49:08,046 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-13 08:49:08,243 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-13 08:49:08,525 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-13 08:49:08,748 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-13 08:49:08,983 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2020-10-13 08:49:09,744 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-13 08:49:10,425 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-13 08:49:10,753 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-13 08:49:10,981 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-10-13 08:49:11,280 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-10-13 08:49:11,505 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-10-13 08:49:11,779 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2020-10-13 08:49:11,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:11,974 INFO L93 Difference]: Finished difference Result 3926 states and 4543 transitions. [2020-10-13 08:49:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:49:11,981 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 445 [2020-10-13 08:49:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:11,992 INFO L225 Difference]: With dead ends: 3926 [2020-10-13 08:49:11,992 INFO L226 Difference]: Without dead ends: 2029 [2020-10-13 08:49:11,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:49:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2020-10-13 08:49:12,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2021. [2020-10-13 08:49:12,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2021 states. [2020-10-13 08:49:12,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2313 transitions. [2020-10-13 08:49:12,050 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2313 transitions. Word has length 445 [2020-10-13 08:49:12,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:12,051 INFO L479 AbstractCegarLoop]: Abstraction has 2021 states and 2313 transitions. [2020-10-13 08:49:12,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:49:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2313 transitions. [2020-10-13 08:49:12,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-10-13 08:49:12,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:12,059 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, 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, 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, 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, 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] [2020-10-13 08:49:12,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:49:12,059 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:12,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1954359308, now seen corresponding path program 1 times [2020-10-13 08:49:12,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:12,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129943576] [2020-10-13 08:49:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:12,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:15,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:49:17,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:17,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 08:49:17,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 277 [2020-10-13 08:49:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 08:49:17,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:17,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:17,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:17,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:49:17,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:17,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:49:17,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-10-13 08:49:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:17,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:17,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-13 08:49:17,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:17,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 319 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-13 08:49:18,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129943576] [2020-10-13 08:49:18,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:18,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:49:18,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216056342] [2020-10-13 08:49:18,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:49:18,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:18,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:49:18,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:49:18,558 INFO L87 Difference]: Start difference. First operand 2021 states and 2313 transitions. Second operand 10 states. [2020-10-13 08:49:20,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:20,776 INFO L93 Difference]: Finished difference Result 4179 states and 4820 transitions. [2020-10-13 08:49:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 08:49:20,777 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 452 [2020-10-13 08:49:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:20,786 INFO L225 Difference]: With dead ends: 4179 [2020-10-13 08:49:20,787 INFO L226 Difference]: Without dead ends: 2113 [2020-10-13 08:49:20,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-10-13 08:49:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2020-10-13 08:49:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 2021. [2020-10-13 08:49:20,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2021 states. [2020-10-13 08:49:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2303 transitions. [2020-10-13 08:49:20,839 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2303 transitions. Word has length 452 [2020-10-13 08:49:20,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:20,840 INFO L479 AbstractCegarLoop]: Abstraction has 2021 states and 2303 transitions. [2020-10-13 08:49:20,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:49:20,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2303 transitions. [2020-10-13 08:49:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-13 08:49:20,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:20,851 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, 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, 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, 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] [2020-10-13 08:49:20,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:49:20,852 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:20,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:20,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1966391672, now seen corresponding path program 1 times [2020-10-13 08:49:20,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:20,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200597160] [2020-10-13 08:49:20,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:20,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:21,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:21,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:25,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-13 08:49:25,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:25,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4761 [2020-10-13 08:49:25,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 283 [2020-10-13 08:49:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:49:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:25,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:25,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:25,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:25,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:25,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:25,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:25,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:25,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:25,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:25,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:25,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:25,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:49:25,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:25,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:25,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:25,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:49:25,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:49:25,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:49:25,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:25,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-10-13 08:49:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:25,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:26,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:26,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:26,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:26,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-13 08:49:26,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:26,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 325 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-13 08:49:26,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200597160] [2020-10-13 08:49:26,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:26,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:49:26,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823535698] [2020-10-13 08:49:26,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:49:26,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:26,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:49:26,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:49:26,310 INFO L87 Difference]: Start difference. First operand 2021 states and 2303 transitions. Second operand 7 states. [2020-10-13 08:49:27,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:27,310 INFO L93 Difference]: Finished difference Result 4071 states and 4698 transitions. [2020-10-13 08:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:49:27,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 458 [2020-10-13 08:49:27,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:27,318 INFO L225 Difference]: With dead ends: 4071 [2020-10-13 08:49:27,319 INFO L226 Difference]: Without dead ends: 2041 [2020-10-13 08:49:27,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:49:27,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2020-10-13 08:49:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 2021. [2020-10-13 08:49:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2021 states. [2020-10-13 08:49:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2298 transitions. [2020-10-13 08:49:27,366 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2298 transitions. Word has length 458 [2020-10-13 08:49:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:27,367 INFO L479 AbstractCegarLoop]: Abstraction has 2021 states and 2298 transitions. [2020-10-13 08:49:27,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:49:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2298 transitions. [2020-10-13 08:49:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2020-10-13 08:49:27,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:27,374 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:27,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:49:27,374 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:27,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:27,375 INFO L82 PathProgramCache]: Analyzing trace with hash -676226484, now seen corresponding path program 1 times [2020-10-13 08:49:27,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:27,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886839495] [2020-10-13 08:49:27,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:27,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:27,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:29,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 498 [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 08:49:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:32,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:32,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:32,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:32,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:32,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:32,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:32,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:32,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:32,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:32,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:49:32,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:32,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:32,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:32,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:32,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:32,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:32,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:32,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:49:32,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:32,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:49:32,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:32,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:32,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:32,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:49:32,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:32,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-13 08:49:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:32,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:33,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-13 08:49:33,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,374 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-13 08:49:33,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886839495] [2020-10-13 08:49:33,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:33,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:33,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447875160] [2020-10-13 08:49:33,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:33,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:33,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:33,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:33,376 INFO L87 Difference]: Start difference. First operand 2021 states and 2298 transitions. Second operand 8 states. [2020-10-13 08:49:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:36,302 INFO L93 Difference]: Finished difference Result 4476 states and 5323 transitions. [2020-10-13 08:49:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 08:49:36,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 484 [2020-10-13 08:49:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:36,312 INFO L225 Difference]: With dead ends: 4476 [2020-10-13 08:49:36,312 INFO L226 Difference]: Without dead ends: 2461 [2020-10-13 08:49:36,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-13 08:49:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2020-10-13 08:49:36,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2403. [2020-10-13 08:49:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2403 states. [2020-10-13 08:49:36,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 2735 transitions. [2020-10-13 08:49:36,374 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 2735 transitions. Word has length 484 [2020-10-13 08:49:36,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:36,375 INFO L479 AbstractCegarLoop]: Abstraction has 2403 states and 2735 transitions. [2020-10-13 08:49:36,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:36,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 2735 transitions. [2020-10-13 08:49:36,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-10-13 08:49:36,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:36,383 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:36,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:49:36,384 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:36,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:36,384 INFO L82 PathProgramCache]: Analyzing trace with hash 616312828, now seen corresponding path program 1 times [2020-10-13 08:49:36,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:36,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636387875] [2020-10-13 08:49:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:36,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:36,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:37,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:41,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 522 [2020-10-13 08:49:41,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:49:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-13 08:49:41,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 333 [2020-10-13 08:49:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 08:49:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:41,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:41,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:41,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:41,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:41,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:41,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:41,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:49:41,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:41,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:41,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:41,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:49:41,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:41,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:49:41,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 08:49:41,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2020-10-13 08:49:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:41,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:42,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:42,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:42,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:42,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-13 08:49:42,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:42,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:42,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 375 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-13 08:49:42,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636387875] [2020-10-13 08:49:42,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:42,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:49:42,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755074851] [2020-10-13 08:49:42,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:49:42,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:42,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:49:42,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:42,495 INFO L87 Difference]: Start difference. First operand 2403 states and 2735 transitions. Second operand 6 states. [2020-10-13 08:49:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:43,482 INFO L93 Difference]: Finished difference Result 4645 states and 5318 transitions. [2020-10-13 08:49:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:49:43,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 508 [2020-10-13 08:49:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:43,492 INFO L225 Difference]: With dead ends: 4645 [2020-10-13 08:49:43,492 INFO L226 Difference]: Without dead ends: 2420 [2020-10-13 08:49:43,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:49:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2020-10-13 08:49:43,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2403. [2020-10-13 08:49:43,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2403 states. [2020-10-13 08:49:43,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 2728 transitions. [2020-10-13 08:49:43,544 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 2728 transitions. Word has length 508 [2020-10-13 08:49:43,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:43,545 INFO L479 AbstractCegarLoop]: Abstraction has 2403 states and 2728 transitions. [2020-10-13 08:49:43,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:49:43,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 2728 transitions. [2020-10-13 08:49:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-10-13 08:49:43,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:43,554 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, 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, 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, 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, 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, 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, 3, 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] [2020-10-13 08:49:43,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:49:43,554 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash 467319157, now seen corresponding path program 1 times [2020-10-13 08:49:43,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:43,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532853858] [2020-10-13 08:49:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:43,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:46,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 555 [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 08:49:48,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:48,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:49:48,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:48,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:49:48,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-13 08:49:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:49,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-13 08:49:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:49,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:49,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:49,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-13 08:49:49,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-10-13 08:49:49,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532853858] [2020-10-13 08:49:49,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:49,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:49:49,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580306820] [2020-10-13 08:49:49,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:49:49,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:49,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:49:49,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:49:49,435 INFO L87 Difference]: Start difference. First operand 2403 states and 2728 transitions. Second operand 7 states. [2020-10-13 08:49:50,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:50,492 INFO L93 Difference]: Finished difference Result 4646 states and 5325 transitions. [2020-10-13 08:49:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:49:50,492 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 541 [2020-10-13 08:49:50,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:50,503 INFO L225 Difference]: With dead ends: 4646 [2020-10-13 08:49:50,504 INFO L226 Difference]: Without dead ends: 2417 [2020-10-13 08:49:50,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:49:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2020-10-13 08:49:50,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2401. [2020-10-13 08:49:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2401 states. [2020-10-13 08:49:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 2713 transitions. [2020-10-13 08:49:50,561 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 2713 transitions. Word has length 541 [2020-10-13 08:49:50,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:50,562 INFO L479 AbstractCegarLoop]: Abstraction has 2401 states and 2713 transitions. [2020-10-13 08:49:50,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:49:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 2713 transitions. [2020-10-13 08:49:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2020-10-13 08:49:50,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:50,572 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:50,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:49:50,572 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:50,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:50,573 INFO L82 PathProgramCache]: Analyzing trace with hash -859743320, now seen corresponding path program 1 times [2020-10-13 08:49:50,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:50,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713550805] [2020-10-13 08:49:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:50,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:50,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:51,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 560 [2020-10-13 08:49:54,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3894 [2020-10-13 08:49:54,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 371 [2020-10-13 08:49:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-13 08:49:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:54,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:49:54,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:54,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:49:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 08:49:54,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 08:49:54,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-13 08:49:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2020-10-13 08:49:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:54,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 08:49:54,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:54,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:54,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:54,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-10-13 08:49:55,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713550805] [2020-10-13 08:49:55,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:55,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:49:55,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16062045] [2020-10-13 08:49:55,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:49:55,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:55,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:49:55,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:49:55,195 INFO L87 Difference]: Start difference. First operand 2401 states and 2713 transitions. Second operand 7 states. [2020-10-13 08:49:57,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:57,343 INFO L93 Difference]: Finished difference Result 6146 states and 7300 transitions. [2020-10-13 08:49:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:49:57,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 546 [2020-10-13 08:49:57,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:57,359 INFO L225 Difference]: With dead ends: 6146 [2020-10-13 08:49:57,359 INFO L226 Difference]: Without dead ends: 3943 [2020-10-13 08:49:57,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:57,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2020-10-13 08:49:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3685. [2020-10-13 08:49:57,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3685 states. [2020-10-13 08:49:57,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 4128 transitions. [2020-10-13 08:49:57,441 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 4128 transitions. Word has length 546 [2020-10-13 08:49:57,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:57,443 INFO L479 AbstractCegarLoop]: Abstraction has 3685 states and 4128 transitions. [2020-10-13 08:49:57,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:49:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 4128 transitions. [2020-10-13 08:49:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2020-10-13 08:49:57,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:57,454 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:57,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:49:57,454 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:57,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash -730693940, now seen corresponding path program 1 times [2020-10-13 08:49:57,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:57,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311880244] [2020-10-13 08:49:57,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:59,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:59,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 562 [2020-10-13 08:49:59,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:59,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1616 [2020-10-13 08:49:59,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 08:49:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:49:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:49:59,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:59,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:59,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:59,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:59,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 08:49:59,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:49:59,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:59,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:59,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:59,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:59,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:59,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:59,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-13 08:49:59,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:49:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:49:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:00,305 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-13 08:50:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:50:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:00,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:00,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:00,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:00,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:00,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:50:00,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:50:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:00,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2020-10-13 08:50:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:00,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:00,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:00,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:50:00,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 08:50:00,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:50:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:00,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 81 proven. 322 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-13 08:50:01,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311880244] [2020-10-13 08:50:01,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:01,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:50:01,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986194368] [2020-10-13 08:50:01,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:50:01,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:01,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:50:01,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:50:01,712 INFO L87 Difference]: Start difference. First operand 3685 states and 4128 transitions. Second operand 13 states. [2020-10-13 08:50:02,495 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-13 08:50:02,821 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-13 08:50:03,074 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-13 08:50:03,454 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2020-10-13 08:50:03,756 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2020-10-13 08:50:04,002 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2020-10-13 08:50:04,303 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-13 08:50:04,467 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-13 08:50:04,673 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-10-13 08:50:04,835 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-13 08:50:05,049 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-13 08:50:05,233 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-13 08:50:05,419 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2020-10-13 08:50:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:05,725 INFO L93 Difference]: Finished difference Result 7543 states and 8447 transitions. [2020-10-13 08:50:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 08:50:05,727 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 548 [2020-10-13 08:50:05,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:05,735 INFO L225 Difference]: With dead ends: 7543 [2020-10-13 08:50:05,735 INFO L226 Difference]: Without dead ends: 3790 [2020-10-13 08:50:05,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:50:05,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2020-10-13 08:50:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 3788. [2020-10-13 08:50:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3788 states. [2020-10-13 08:50:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 4223 transitions. [2020-10-13 08:50:05,806 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 4223 transitions. Word has length 548 [2020-10-13 08:50:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:05,807 INFO L479 AbstractCegarLoop]: Abstraction has 3788 states and 4223 transitions. [2020-10-13 08:50:05,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:50:05,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 4223 transitions. [2020-10-13 08:50:05,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2020-10-13 08:50:05,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:05,820 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:05,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:50:05,820 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash -476753773, now seen corresponding path program 1 times [2020-10-13 08:50:05,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:05,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266283751] [2020-10-13 08:50:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:06,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 785 [2020-10-13 08:50:08,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:08,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2303 [2020-10-13 08:50:08,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:50:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-13 08:50:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:50:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:08,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:08,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:08,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:08,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:08,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:08,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:08,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:08,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:50:08,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 08:50:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:08,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:08,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-13 08:50:08,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:50:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:09,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2020-10-13 08:50:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:09,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:09,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:09,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:09,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:09,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:50:09,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:09,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:50:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:09,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-13 08:50:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:09,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:09,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:50:09,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:50:09,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:50:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:09,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 369 proven. 328 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-13 08:50:09,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266283751] [2020-10-13 08:50:09,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:09,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:50:09,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304632448] [2020-10-13 08:50:09,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:50:09,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:09,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:50:09,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:50:09,506 INFO L87 Difference]: Start difference. First operand 3788 states and 4223 transitions. Second operand 8 states. [2020-10-13 08:50:11,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:11,199 INFO L93 Difference]: Finished difference Result 7279 states and 8148 transitions. [2020-10-13 08:50:11,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:50:11,207 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 767 [2020-10-13 08:50:11,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:11,219 INFO L225 Difference]: With dead ends: 7279 [2020-10-13 08:50:11,219 INFO L226 Difference]: Without dead ends: 3974 [2020-10-13 08:50:11,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:50:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2020-10-13 08:50:11,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3972. [2020-10-13 08:50:11,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3972 states. [2020-10-13 08:50:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3972 states to 3972 states and 4414 transitions. [2020-10-13 08:50:11,292 INFO L78 Accepts]: Start accepts. Automaton has 3972 states and 4414 transitions. Word has length 767 [2020-10-13 08:50:11,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:11,293 INFO L479 AbstractCegarLoop]: Abstraction has 3972 states and 4414 transitions. [2020-10-13 08:50:11,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:50:11,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3972 states and 4414 transitions. [2020-10-13 08:50:11,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2020-10-13 08:50:11,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:11,312 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2020-10-13 08:50:11,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:50:11,313 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:11,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:11,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1381061859, now seen corresponding path program 1 times [2020-10-13 08:50:11,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:11,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864301231] [2020-10-13 08:50:11,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:11,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:11,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:11,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:12,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:16,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:16,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 809 [2020-10-13 08:50:16,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:50:16,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 08:50:16,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 08:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 08:50:16,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:16,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:16,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:16,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:16,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:16,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:16,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:50:16,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:16,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:16,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 08:50:16,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:16,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-13 08:50:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:16,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:16,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:16,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:16,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:16,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 08:50:16,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:50:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:16,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:16,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-10-13 08:50:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:16,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:16,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:16,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:16,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:16,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:50:16,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:50:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:16,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:16,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-13 08:50:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:16,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:17,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:50:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:50:17,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:50:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1459 backedges. 254 proven. 392 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2020-10-13 08:50:17,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864301231] [2020-10-13 08:50:17,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:17,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:17,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197517307] [2020-10-13 08:50:17,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:17,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:17,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:17,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:17,480 INFO L87 Difference]: Start difference. First operand 3972 states and 4414 transitions. Second operand 7 states. [2020-10-13 08:50:18,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:18,911 INFO L93 Difference]: Finished difference Result 7825 states and 8723 transitions. [2020-10-13 08:50:18,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:50:18,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 791 [2020-10-13 08:50:18,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:18,922 INFO L225 Difference]: With dead ends: 7825 [2020-10-13 08:50:18,922 INFO L226 Difference]: Without dead ends: 3966 [2020-10-13 08:50:18,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:50:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2020-10-13 08:50:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3784. [2020-10-13 08:50:18,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3784 states. [2020-10-13 08:50:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 4207 transitions. [2020-10-13 08:50:18,991 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 4207 transitions. Word has length 791 [2020-10-13 08:50:18,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:18,992 INFO L479 AbstractCegarLoop]: Abstraction has 3784 states and 4207 transitions. [2020-10-13 08:50:18,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:18,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 4207 transitions. [2020-10-13 08:50:19,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2020-10-13 08:50:19,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:19,006 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:19,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:50:19,007 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:19,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:19,007 INFO L82 PathProgramCache]: Analyzing trace with hash 946095, now seen corresponding path program 1 times [2020-10-13 08:50:19,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:19,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136541264] [2020-10-13 08:50:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:19,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:20,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:23,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 904 [2020-10-13 08:50:23,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:50:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3970 [2020-10-13 08:50:23,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:50:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:50:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 08:50:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:23,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:23,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:23,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:23,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:23,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:23,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:23,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:23,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:23,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:23,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:23,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:23,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:50:23,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:23,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:23,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:23,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:23,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:23,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:50:23,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:50:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:23,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:23,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:23,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:23,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-13 08:50:23,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:50:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:50:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:24,276 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-13 08:50:24,465 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2020-10-13 08:50:24,681 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-13 08:50:24,916 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 08:50:25,171 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-13 08:50:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:50:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:25,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:25,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:25,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:25,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 08:50:25,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:50:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:25,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2020-10-13 08:50:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:25,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:25,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:25,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:50:25,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:50:25,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:50:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:25,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1983 backedges. 523 proven. 328 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2020-10-13 08:50:27,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136541264] [2020-10-13 08:50:27,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:27,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:50:27,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875822082] [2020-10-13 08:50:27,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:50:27,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:27,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:50:27,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:50:27,725 INFO L87 Difference]: Start difference. First operand 3784 states and 4207 transitions. Second operand 13 states. [2020-10-13 08:50:28,513 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-13 08:50:29,192 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-13 08:50:29,506 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-13 08:50:29,718 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-10-13 08:50:29,997 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-10-13 08:50:30,287 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-10-13 08:50:30,575 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2020-10-13 08:50:31,419 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-13 08:50:32,063 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-13 08:50:32,404 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2020-10-13 08:50:32,634 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2020-10-13 08:50:32,935 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-10-13 08:50:33,236 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2020-10-13 08:50:33,649 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2020-10-13 08:50:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:33,899 INFO L93 Difference]: Finished difference Result 7637 states and 8504 transitions. [2020-10-13 08:50:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:50:33,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 884 [2020-10-13 08:50:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:33,909 INFO L225 Difference]: With dead ends: 7637 [2020-10-13 08:50:33,909 INFO L226 Difference]: Without dead ends: 3941 [2020-10-13 08:50:33,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:50:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2020-10-13 08:50:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2020-10-13 08:50:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3941 states. [2020-10-13 08:50:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 4367 transitions. [2020-10-13 08:50:33,977 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 4367 transitions. Word has length 884 [2020-10-13 08:50:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:33,978 INFO L479 AbstractCegarLoop]: Abstraction has 3941 states and 4367 transitions. [2020-10-13 08:50:33,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:50:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 4367 transitions. [2020-10-13 08:50:33,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2020-10-13 08:50:33,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:33,994 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:33,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:50:33,995 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:33,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:33,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1384446875, now seen corresponding path program 1 times [2020-10-13 08:50:33,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:33,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290281532] [2020-10-13 08:50:33,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:34,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:39,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 987 [2020-10-13 08:50:39,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:50:39,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-13 08:50:39,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:50:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-13 08:50:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:50:39,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:39,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:39,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:39,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:39,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:39,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:39,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:39,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:39,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:39,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:39,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:39,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:39,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:39,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:39,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:50:39,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:39,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:50:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:40,360 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2020-10-13 08:50:40,632 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2020-10-13 08:50:40,929 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-10-13 08:50:41,201 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2020-10-13 08:50:41,491 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2020-10-13 08:50:41,790 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-10-13 08:50:42,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-13 08:50:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:42,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-13 08:50:42,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:50:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:42,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-13 08:50:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:42,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:42,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:42,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:50:42,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:50:42,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:50:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2496 backedges. 641 proven. 328 refuted. 0 times theorem prover too weak. 1527 trivial. 0 not checked. [2020-10-13 08:50:45,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290281532] [2020-10-13 08:50:45,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:45,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:50:45,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409471995] [2020-10-13 08:50:45,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:50:45,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:45,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:50:45,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:50:45,949 INFO L87 Difference]: Start difference. First operand 3941 states and 4367 transitions. Second operand 13 states. [2020-10-13 08:50:46,621 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-10-13 08:50:47,133 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2020-10-13 08:50:47,480 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-10-13 08:50:47,724 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2020-10-13 08:50:47,954 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-13 08:50:48,460 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-13 08:50:48,743 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 85 [2020-10-13 08:50:49,023 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 53 [2020-10-13 08:50:49,219 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-13 08:50:49,869 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2020-10-13 08:50:50,476 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 61 [2020-10-13 08:50:50,722 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 54 [2020-10-13 08:50:50,989 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-13 08:50:51,570 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-13 08:50:51,896 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 64 [2020-10-13 08:50:52,334 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 08:50:52,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:52,507 INFO L93 Difference]: Finished difference Result 7953 states and 8837 transitions. [2020-10-13 08:50:52,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:50:52,508 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 965 [2020-10-13 08:50:52,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:52,515 INFO L225 Difference]: With dead ends: 7953 [2020-10-13 08:50:52,515 INFO L226 Difference]: Without dead ends: 4118 [2020-10-13 08:50:52,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=271, Invalid=659, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:50:52,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4118 states. [2020-10-13 08:50:52,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4118 to 4116. [2020-10-13 08:50:52,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4116 states. [2020-10-13 08:50:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4116 states to 4116 states and 4543 transitions. [2020-10-13 08:50:52,584 INFO L78 Accepts]: Start accepts. Automaton has 4116 states and 4543 transitions. Word has length 965 [2020-10-13 08:50:52,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:52,585 INFO L479 AbstractCegarLoop]: Abstraction has 4116 states and 4543 transitions. [2020-10-13 08:50:52,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:50:52,585 INFO L276 IsEmpty]: Start isEmpty. Operand 4116 states and 4543 transitions. [2020-10-13 08:50:52,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2020-10-13 08:50:52,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:52,607 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:52,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:50:52,608 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:52,609 INFO L82 PathProgramCache]: Analyzing trace with hash -506721889, now seen corresponding path program 1 times [2020-10-13 08:50:52,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:52,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867244149] [2020-10-13 08:50:52,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:52,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:53,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:56,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1065 [2020-10-13 08:50:56,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:56,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3417 [2020-10-13 08:50:56,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:56,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:50:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:50:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:50:56,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:56,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:56,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:56,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:56,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:56,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:56,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:56,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:56,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:56,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:56,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:56,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:56,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:56,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:56,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:56,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:56,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:56,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:56,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:50:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:56,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:50:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:56,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:57,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:57,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:57,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:57,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-13 08:50:57,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:50:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:50:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:57,463 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-10-13 08:50:57,650 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-10-13 08:50:57,861 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-13 08:50:58,052 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-10-13 08:50:58,314 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-13 08:50:58,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-13 08:50:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:58,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:50:58,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:50:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 864 [2020-10-13 08:50:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:01,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2817 backedges. 719 proven. 328 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2020-10-13 08:51:01,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867244149] [2020-10-13 08:51:01,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:01,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:51:01,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265981890] [2020-10-13 08:51:01,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:51:01,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:01,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:51:01,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:51:01,190 INFO L87 Difference]: Start difference. First operand 4116 states and 4543 transitions. Second operand 13 states. [2020-10-13 08:51:01,825 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-10-13 08:51:02,414 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-13 08:51:02,832 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-10-13 08:51:03,081 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-13 08:51:03,284 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-13 08:51:03,761 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2020-10-13 08:51:04,254 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2020-10-13 08:51:05,176 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-10-13 08:51:05,893 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-10-13 08:51:06,184 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-10-13 08:51:06,435 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-10-13 08:51:06,839 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2020-10-13 08:51:07,216 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 68 [2020-10-13 08:51:07,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:07,584 INFO L93 Difference]: Finished difference Result 8119 states and 8972 transitions. [2020-10-13 08:51:07,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:51:07,588 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1043 [2020-10-13 08:51:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:07,596 INFO L225 Difference]: With dead ends: 8119 [2020-10-13 08:51:07,596 INFO L226 Difference]: Without dead ends: 4105 [2020-10-13 08:51:07,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:51:07,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2020-10-13 08:51:07,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 4105. [2020-10-13 08:51:07,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4105 states. [2020-10-13 08:51:07,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 4517 transitions. [2020-10-13 08:51:07,658 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 4517 transitions. Word has length 1043 [2020-10-13 08:51:07,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:07,659 INFO L479 AbstractCegarLoop]: Abstraction has 4105 states and 4517 transitions. [2020-10-13 08:51:07,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:51:07,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 4517 transitions. [2020-10-13 08:51:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2020-10-13 08:51:07,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:07,672 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:51:07,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 08:51:07,673 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:07,673 INFO L82 PathProgramCache]: Analyzing trace with hash -600373649, now seen corresponding path program 1 times [2020-10-13 08:51:07,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:07,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706002878] [2020-10-13 08:51:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:11,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1166 [2020-10-13 08:51:11,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:51:11,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3568 [2020-10-13 08:51:11,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:11,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:51:11,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-13 08:51:11,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 08:51:11,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:11,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:11,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:11,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:11,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:11,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:51:11,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:11,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:11,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:11,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:11,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:11,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:11,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:11,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:11,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:51:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:11,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:51:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:51:11,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:11,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:51:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:11,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:11,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:51:11,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:11,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:51:11,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:11,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:11,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:51:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:11,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:11,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:51:11,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:51:11,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:11,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:51:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:11,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:11,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:51:11,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:11,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 08:51:11,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:11,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:11,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:11,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 08:51:11,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:11,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:51:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:11,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:11,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:12,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:12,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:12,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:51:12,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-13 08:51:12,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:12,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:12,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:12,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:51:12,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:12,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-13 08:51:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:12,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:12,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:12,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:51:12,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:12,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:51:12,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:12,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:12,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:51:12,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:12,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:12,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2020-10-13 08:51:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:12,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:12,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:12,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:51:12,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:12,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:51:12,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:12,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:12,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:51:12,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:12,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3447 backedges. 855 proven. 328 refuted. 0 times theorem prover too weak. 2264 trivial. 0 not checked. [2020-10-13 08:51:13,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706002878] [2020-10-13 08:51:13,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:13,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:51:13,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524334663] [2020-10-13 08:51:13,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:51:13,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:13,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:51:13,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:51:13,292 INFO L87 Difference]: Start difference. First operand 4105 states and 4517 transitions. Second operand 8 states. [2020-10-13 08:51:15,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:15,139 INFO L93 Difference]: Finished difference Result 8103 states and 8928 transitions. [2020-10-13 08:51:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:51:15,140 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1142 [2020-10-13 08:51:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:15,148 INFO L225 Difference]: With dead ends: 8103 [2020-10-13 08:51:15,148 INFO L226 Difference]: Without dead ends: 4111 [2020-10-13 08:51:15,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:51:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2020-10-13 08:51:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4105. [2020-10-13 08:51:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4105 states. [2020-10-13 08:51:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 4497 transitions. [2020-10-13 08:51:15,212 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 4497 transitions. Word has length 1142 [2020-10-13 08:51:15,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:15,213 INFO L479 AbstractCegarLoop]: Abstraction has 4105 states and 4497 transitions. [2020-10-13 08:51:15,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:51:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 4497 transitions. [2020-10-13 08:51:15,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2020-10-13 08:51:15,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:15,233 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:51:15,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 08:51:15,234 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:15,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:15,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1485181370, now seen corresponding path program 1 times [2020-10-13 08:51:15,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:15,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535145944] [2020-10-13 08:51:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:15,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:15,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:19,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1244 [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5111 [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-13 08:51:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:20,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:20,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:51:20,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:20,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:20,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:20,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:51:20,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:20,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:51:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:51:20,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:51:20,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:51:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:51:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:51:20,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:20,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:51:20,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:20,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:51:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:51:20,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:20,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:51:20,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:20,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:51:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:20,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:51:20,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:51:20,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:51:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:20,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:51:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:21,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:21,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:21,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-13 08:51:21,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:51:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:51:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:21,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:51:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:21,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:21,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:21,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:21,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:51:21,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:51:21,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-13 08:51:21,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:51:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-13 08:51:21,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:22,087 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-13 08:51:22,287 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-13 08:51:22,500 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-13 08:51:22,716 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-13 08:51:22,949 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2020-10-13 08:51:23,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1039 [2020-10-13 08:51:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:23,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:23,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:23,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:51:23,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:51:23,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 08:51:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:23,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0