/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/Problem01_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:00:12,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:00:12,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:00:12,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:00:12,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:00:12,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:00:12,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:00:12,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:00:12,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:00:12,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:00:12,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:00:12,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:00:12,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:00:12,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:00:12,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:00:12,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:00:12,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:00:12,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:00:12,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:00:12,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:00:12,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:00:12,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:00:12,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:00:12,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:00:12,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:00:12,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:00:12,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:00:12,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:00:12,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:00:12,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:00:12,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:00:12,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:00:12,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:00:12,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:00:12,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:00:12,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:00:12,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:00:12,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:00:12,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:00:12,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:00:12,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:00:12,638 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 06:00:12,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:00:12,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:00:12,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:00:12,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:00:12,680 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:00:12,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:00:12,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:00:12,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:00:12,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:00:12,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:00:12,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:00:12,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:00:12,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:00:12,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:00:12,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:00:12,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:00:12,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:00:12,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:00:12,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:00:12,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:00:12,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:00:12,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:00:12,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:00:12,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:00:12,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:00:12,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:00:12,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:00:12,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:00:12,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:00:12,686 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 06:00:13,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:00:13,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:00:13,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:00:13,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:00:13,033 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:00:13,034 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label13.c [2020-10-13 06:00:13,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb81e4fdb/20b80a598c954dfca328f080e0eeee0e/FLAGb29dbffd3 [2020-10-13 06:00:13,699 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:00:13,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label13.c [2020-10-13 06:00:13,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb81e4fdb/20b80a598c954dfca328f080e0eeee0e/FLAGb29dbffd3 [2020-10-13 06:00:13,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb81e4fdb/20b80a598c954dfca328f080e0eeee0e [2020-10-13 06:00:13,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:00:13,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:00:13,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:00:13,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:00:13,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:00:13,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:13" (1/1) ... [2020-10-13 06:00:13,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66948a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:13, skipping insertion in model container [2020-10-13 06:00:13,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:13" (1/1) ... [2020-10-13 06:00:13,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:00:14,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:00:14,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:00:14,546 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:00:14,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:00:14,649 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:00:14,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14 WrapperNode [2020-10-13 06:00:14,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:00:14,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:00:14,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:00:14,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:00:14,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (1/1) ... [2020-10-13 06:00:14,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (1/1) ... [2020-10-13 06:00:14,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (1/1) ... [2020-10-13 06:00:14,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (1/1) ... [2020-10-13 06:00:14,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (1/1) ... [2020-10-13 06:00:14,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (1/1) ... [2020-10-13 06:00:14,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (1/1) ... [2020-10-13 06:00:14,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:00:14,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:00:14,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:00:14,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:00:14,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (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 06:00:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:00:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:00:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:00:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:00:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:00:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:00:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:00:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:00:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:00:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:00:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:00:15,909 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:00:15,909 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:00:15,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:00:15 BoogieIcfgContainer [2020-10-13 06:00:15,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:00:15,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:00:15,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:00:15,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:00:15,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:00:13" (1/3) ... [2020-10-13 06:00:15,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d90d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:00:15, skipping insertion in model container [2020-10-13 06:00:15,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:14" (2/3) ... [2020-10-13 06:00:15,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d90d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:00:15, skipping insertion in model container [2020-10-13 06:00:15,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:00:15" (3/3) ... [2020-10-13 06:00:15,923 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label13.c [2020-10-13 06:00:15,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:00:15,940 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:00:15,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:00:15,978 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:00:15,978 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:00:15,979 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:00:15,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:00:15,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:00:15,979 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:00:15,980 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:00:15,980 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:00:16,002 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:00:16,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 06:00:16,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:16,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:16,018 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:16,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2118591881, now seen corresponding path program 1 times [2020-10-13 06:00:16,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:16,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060611924] [2020-10-13 06:00:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:16,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:16,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:18,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:18,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 06:00:18,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1780 [2020-10-13 06:00:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:00:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:00:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:00:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:00:18,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:18,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:18,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:18,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:00:18,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:00:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:19,109 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 06:00:19,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060611924] [2020-10-13 06:00:19,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:00:19,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:00:19,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333493785] [2020-10-13 06:00:19,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:19,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:19,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:19,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:19,136 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:00:19,562 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-13 06:00:19,769 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-13 06:00:20,009 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:00:20,260 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:00:20,532 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:00:21,033 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-13 06:00:21,571 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-13 06:00:21,880 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-10-13 06:00:22,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:22,939 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:00:22,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:22,942 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 129 [2020-10-13 06:00:22,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:22,964 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:00:22,965 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:00:22,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:00:22,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:00:23,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:00:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:00:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:00:23,030 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 129 [2020-10-13 06:00:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:23,031 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:00:23,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:23,031 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:00:23,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-13 06:00:23,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:23,035 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:00:23,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:00:23,036 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:23,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:23,036 INFO L82 PathProgramCache]: Analyzing trace with hash 74056444, now seen corresponding path program 1 times [2020-10-13 06:00:23,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:23,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007311698] [2020-10-13 06:00:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:23,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:24,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:24,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-13 06:00:24,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:24,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1694 [2020-10-13 06:00:24,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:24,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:24,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:00:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:00:24,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:25,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:25,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:25,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:25,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:25,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:25,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:00:25,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:25,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:00:25,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:25,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:25,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:00:25,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:00:25,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007311698] [2020-10-13 06:00:25,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:25,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:00:25,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775250709] [2020-10-13 06:00:25,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:00:25,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:25,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:00:25,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:00:25,518 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 14 states. [2020-10-13 06:00:25,880 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 06:00:26,081 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:00:26,491 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:00:27,557 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:00:27,894 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 06:00:28,319 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-13 06:00:28,523 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-13 06:00:29,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:29,603 INFO L93 Difference]: Finished difference Result 508 states and 777 transitions. [2020-10-13 06:00:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 06:00:29,604 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 137 [2020-10-13 06:00:29,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:29,609 INFO L225 Difference]: With dead ends: 508 [2020-10-13 06:00:29,609 INFO L226 Difference]: Without dead ends: 369 [2020-10-13 06:00:29,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=316, Invalid=740, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 06:00:29,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-13 06:00:29,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 278. [2020-10-13 06:00:29,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:00:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 357 transitions. [2020-10-13 06:00:29,636 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 357 transitions. Word has length 137 [2020-10-13 06:00:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:29,637 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 357 transitions. [2020-10-13 06:00:29,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:00:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 357 transitions. [2020-10-13 06:00:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-13 06:00:29,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:29,641 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:00:29,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:00:29,641 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:29,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:29,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1517924030, now seen corresponding path program 1 times [2020-10-13 06:00:29,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:29,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237807237] [2020-10-13 06:00:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:30,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:30,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 06:00:30,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:30,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-13 06:00:30,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:00:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:00:30,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:30,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:30,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:30,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:30,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:30,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:30,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:30,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:30,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:30,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:30,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:30,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:30,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:30,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:30,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:30,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:00:30,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:30,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:30,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:30,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:30,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:00:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:00:30,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237807237] [2020-10-13 06:00:30,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:30,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:30,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831541483] [2020-10-13 06:00:30,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:30,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:30,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:30,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:30,353 INFO L87 Difference]: Start difference. First operand 278 states and 357 transitions. Second operand 5 states. [2020-10-13 06:00:31,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:31,330 INFO L93 Difference]: Finished difference Result 591 states and 814 transitions. [2020-10-13 06:00:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:31,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-13 06:00:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:31,336 INFO L225 Difference]: With dead ends: 591 [2020-10-13 06:00:31,336 INFO L226 Difference]: Without dead ends: 280 [2020-10-13 06:00:31,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 06:00:31,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-13 06:00:31,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 278. [2020-10-13 06:00:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:00:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 332 transitions. [2020-10-13 06:00:31,356 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 332 transitions. Word has length 140 [2020-10-13 06:00:31,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:31,356 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 332 transitions. [2020-10-13 06:00:31,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 332 transitions. [2020-10-13 06:00:31,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-13 06:00:31,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:31,360 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:00:31,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:00:31,361 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:31,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1430159046, now seen corresponding path program 1 times [2020-10-13 06:00:31,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:31,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453936924] [2020-10-13 06:00:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:31,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:31,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:31,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 06:00:33,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:33,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1859 [2020-10-13 06:00:33,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:00:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:33,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:33,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:33,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:33,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:33,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 06:00:33,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:00:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:00:34,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453936924] [2020-10-13 06:00:34,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:34,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:34,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825808592] [2020-10-13 06:00:34,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:34,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:34,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:34,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:34,063 INFO L87 Difference]: Start difference. First operand 278 states and 332 transitions. Second operand 13 states. [2020-10-13 06:00:34,877 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:00:35,233 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:00:35,474 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:00:35,692 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:00:36,029 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-13 06:00:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:36,415 INFO L93 Difference]: Finished difference Result 556 states and 700 transitions. [2020-10-13 06:00:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:00:36,416 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 170 [2020-10-13 06:00:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:36,419 INFO L225 Difference]: With dead ends: 556 [2020-10-13 06:00:36,420 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:00:36,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:36,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:00:36,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-13 06:00:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-13 06:00:36,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 380 transitions. [2020-10-13 06:00:36,442 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 380 transitions. Word has length 170 [2020-10-13 06:00:36,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:36,442 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 380 transitions. [2020-10-13 06:00:36,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 380 transitions. [2020-10-13 06:00:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-13 06:00:36,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:36,447 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:00:36,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:00:36,448 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:36,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:36,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1557913685, now seen corresponding path program 1 times [2020-10-13 06:00:36,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:36,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939353689] [2020-10-13 06:00:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:36,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:36,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:36,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:40,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:40,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-13 06:00:40,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3499 [2020-10-13 06:00:40,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:00:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:00:40,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:40,415 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-13 06:00:40,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:40,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:40,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:40,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:40,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:40,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:40,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:40,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:40,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:40,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:40,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:00:40,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:40,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:40,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:40,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:00:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:40,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:41,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:41,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:00:41,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:00:41,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:41,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:41,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:00:41,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:00:41,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939353689] [2020-10-13 06:00:41,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:41,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:00:41,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906225454] [2020-10-13 06:00:41,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:00:41,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:41,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:00:41,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:00:41,332 INFO L87 Difference]: Start difference. First operand 321 states and 380 transitions. Second operand 14 states. [2020-10-13 06:00:41,942 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:00:42,193 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-10-13 06:00:42,510 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2020-10-13 06:00:42,872 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-13 06:00:43,191 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2020-10-13 06:00:43,449 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2020-10-13 06:00:43,787 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-13 06:00:44,211 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:00:44,386 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:00:45,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:45,227 INFO L93 Difference]: Finished difference Result 724 states and 937 transitions. [2020-10-13 06:00:45,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:00:45,228 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 187 [2020-10-13 06:00:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:45,232 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:00:45,232 INFO L226 Difference]: Without dead ends: 469 [2020-10-13 06:00:45,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:00:45,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-10-13 06:00:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 395. [2020-10-13 06:00:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-10-13 06:00:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 460 transitions. [2020-10-13 06:00:45,254 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 460 transitions. Word has length 187 [2020-10-13 06:00:45,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:45,255 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 460 transitions. [2020-10-13 06:00:45,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:00:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 460 transitions. [2020-10-13 06:00:45,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-13 06:00:45,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:45,260 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:00:45,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:00:45,260 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:45,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:45,261 INFO L82 PathProgramCache]: Analyzing trace with hash 2120961190, now seen corresponding path program 1 times [2020-10-13 06:00:45,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:45,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555897061] [2020-10-13 06:00:45,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:45,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:45,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:45,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:46,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:46,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-13 06:00:46,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:46,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1507 [2020-10-13 06:00:46,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:46,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:46,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:00:46,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:00:46,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:47,144 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-13 06:00:47,442 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:00:47,605 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:00:47,752 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:00:48,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:48,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:48,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:48,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:48,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:48,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:48,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:48,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:48,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:48,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:00:48,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:00:48,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555897061] [2020-10-13 06:00:48,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:48,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:00:48,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719536927] [2020-10-13 06:00:48,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:00:48,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:48,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:00:48,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:00:48,466 INFO L87 Difference]: Start difference. First operand 395 states and 460 transitions. Second operand 14 states. [2020-10-13 06:00:49,068 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:00:49,324 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:00:49,743 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:00:50,206 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:00:50,500 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:00:50,755 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:00:51,080 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:00:51,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:51,392 INFO L93 Difference]: Finished difference Result 797 states and 976 transitions. [2020-10-13 06:00:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:51,393 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 192 [2020-10-13 06:00:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:51,395 INFO L225 Difference]: With dead ends: 797 [2020-10-13 06:00:51,396 INFO L226 Difference]: Without dead ends: 448 [2020-10-13 06:00:51,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:00:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-13 06:00:51,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2020-10-13 06:00:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-13 06:00:51,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 512 transitions. [2020-10-13 06:00:51,424 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 512 transitions. Word has length 192 [2020-10-13 06:00:51,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:51,425 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 512 transitions. [2020-10-13 06:00:51,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:00:51,425 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 512 transitions. [2020-10-13 06:00:51,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-13 06:00:51,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:51,430 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:00:51,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:00:51,431 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:51,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:51,432 INFO L82 PathProgramCache]: Analyzing trace with hash -332294201, now seen corresponding path program 1 times [2020-10-13 06:00:51,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:51,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050446592] [2020-10-13 06:00:51,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:51,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:53,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:53,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-13 06:00:53,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2068 [2020-10-13 06:00:53,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:53,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:53,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:00:53,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:00:53,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:53,901 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:00:54,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:54,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:54,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:54,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:54,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:54,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:00:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:00:54,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050446592] [2020-10-13 06:00:54,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:54,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:54,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456317811] [2020-10-13 06:00:54,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:54,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:54,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:54,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:54,635 INFO L87 Difference]: Start difference. First operand 446 states and 512 transitions. Second operand 13 states. [2020-10-13 06:00:55,232 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:00:55,572 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:00:55,946 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:00:56,220 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:00:56,590 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:00:56,921 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:00:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:57,262 INFO L93 Difference]: Finished difference Result 890 states and 1068 transitions. [2020-10-13 06:00:57,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:57,263 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 203 [2020-10-13 06:00:57,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:57,266 INFO L225 Difference]: With dead ends: 890 [2020-10-13 06:00:57,266 INFO L226 Difference]: Without dead ends: 510 [2020-10-13 06:00:57,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:00:57,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-13 06:00:57,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2020-10-13 06:00:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-10-13 06:00:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 583 transitions. [2020-10-13 06:00:57,288 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 583 transitions. Word has length 203 [2020-10-13 06:00:57,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:57,289 INFO L479 AbstractCegarLoop]: Abstraction has 510 states and 583 transitions. [2020-10-13 06:00:57,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 583 transitions. [2020-10-13 06:00:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-13 06:00:57,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:57,292 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:57,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:00:57,293 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:57,293 INFO L82 PathProgramCache]: Analyzing trace with hash -438513929, now seen corresponding path program 1 times [2020-10-13 06:00:57,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:57,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638172861] [2020-10-13 06:00:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:57,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:57,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:57,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-13 06:00:59,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:59,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2566 [2020-10-13 06:00:59,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:59,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:00:59,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:59,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,326 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2020-10-13 06:01:00,460 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2020-10-13 06:01:00,591 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 39 [2020-10-13 06:01:00,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:00,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:00,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:01,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:01,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:01,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:01,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:01,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:01,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:01,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:01,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:01,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:01,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:01:01,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:01,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:01:01,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:01:01,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:01:01,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638172861] [2020-10-13 06:01:01,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:01,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:01,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072684761] [2020-10-13 06:01:01,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:01,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:01,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:01,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:01,231 INFO L87 Difference]: Start difference. First operand 510 states and 583 transitions. Second operand 13 states. [2020-10-13 06:01:01,818 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-13 06:01:02,004 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:01:02,212 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 06:01:02,662 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-13 06:01:03,095 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2020-10-13 06:01:03,403 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2020-10-13 06:01:03,713 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2020-10-13 06:01:04,064 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 100 [2020-10-13 06:01:04,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:04,428 INFO L93 Difference]: Finished difference Result 1014 states and 1203 transitions. [2020-10-13 06:01:04,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:04,430 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 206 [2020-10-13 06:01:04,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:04,433 INFO L225 Difference]: With dead ends: 1014 [2020-10-13 06:01:04,433 INFO L226 Difference]: Without dead ends: 553 [2020-10-13 06:01:04,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:04,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-10-13 06:01:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 548. [2020-10-13 06:01:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-10-13 06:01:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 628 transitions. [2020-10-13 06:01:04,453 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 628 transitions. Word has length 206 [2020-10-13 06:01:04,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:04,454 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 628 transitions. [2020-10-13 06:01:04,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:04,454 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 628 transitions. [2020-10-13 06:01:04,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-13 06:01:04,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:04,458 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:04,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:01:04,458 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:04,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:04,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1641392979, now seen corresponding path program 1 times [2020-10-13 06:01:04,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:04,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603889142] [2020-10-13 06:01:04,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-13 06:01:06,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2061 [2020-10-13 06:01:06,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:01:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:06,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:06,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:07,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:07,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:07,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:07,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:07,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:07,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:07,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:07,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:07,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:01:07,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:01:07,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:01:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:01:07,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603889142] [2020-10-13 06:01:07,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:07,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:07,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820222234] [2020-10-13 06:01:07,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:07,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:07,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:07,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:07,279 INFO L87 Difference]: Start difference. First operand 548 states and 628 transitions. Second operand 13 states. [2020-10-13 06:01:08,215 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:01:08,525 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:01:08,773 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:01:08,978 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:01:09,269 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:01:09,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:09,604 INFO L93 Difference]: Finished difference Result 1092 states and 1295 transitions. [2020-10-13 06:01:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:09,608 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2020-10-13 06:01:09,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:09,610 INFO L225 Difference]: With dead ends: 1092 [2020-10-13 06:01:09,610 INFO L226 Difference]: Without dead ends: 593 [2020-10-13 06:01:09,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:09,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-13 06:01:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 591. [2020-10-13 06:01:09,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-13 06:01:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 678 transitions. [2020-10-13 06:01:09,631 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 678 transitions. Word has length 209 [2020-10-13 06:01:09,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:09,632 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 678 transitions. [2020-10-13 06:01:09,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:09,632 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 678 transitions. [2020-10-13 06:01:09,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-13 06:01:09,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:09,635 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:01:09,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:01:09,635 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:09,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:09,636 INFO L82 PathProgramCache]: Analyzing trace with hash 921667134, now seen corresponding path program 1 times [2020-10-13 06:01:09,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:09,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359893854] [2020-10-13 06:01:09,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-13 06:01:11,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:11,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2180 [2020-10-13 06:01:11,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:11,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:01:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:11,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,221 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:01:12,344 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:01:12,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:12,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:12,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:01:12,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:01:12,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:12,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:01:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:01:12,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:12,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:01:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:01:12,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:01:12,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:01:12,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:01:13,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359893854] [2020-10-13 06:01:13,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:13,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:13,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346654734] [2020-10-13 06:01:13,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:13,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:13,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:13,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:13,073 INFO L87 Difference]: Start difference. First operand 591 states and 678 transitions. Second operand 13 states. [2020-10-13 06:01:13,897 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:01:14,133 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:01:14,387 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:01:14,568 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:01:14,835 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:01:15,218 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-10-13 06:01:15,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:15,737 INFO L93 Difference]: Finished difference Result 1174 states and 1391 transitions. [2020-10-13 06:01:15,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:01:15,739 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 213 [2020-10-13 06:01:15,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:15,742 INFO L225 Difference]: With dead ends: 1174 [2020-10-13 06:01:15,742 INFO L226 Difference]: Without dead ends: 632 [2020-10-13 06:01:15,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:15,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-10-13 06:01:15,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 591. [2020-10-13 06:01:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-13 06:01:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 678 transitions. [2020-10-13 06:01:15,765 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 678 transitions. Word has length 213 [2020-10-13 06:01:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:15,765 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 678 transitions. [2020-10-13 06:01:15,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 678 transitions. [2020-10-13 06:01:15,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-13 06:01:15,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:15,768 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:15,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:01:15,769 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:15,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:15,769 INFO L82 PathProgramCache]: Analyzing trace with hash 514535412, now seen corresponding path program 1 times [2020-10-13 06:01:15,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:15,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430599455] [2020-10-13 06:01:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:15,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:15,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:18,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:18,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-13 06:01:18,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:18,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2980 [2020-10-13 06:01:18,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:01:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,174 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-13 06:01:19,379 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-13 06:01:19,549 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2020-10-13 06:01:19,685 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2020-10-13 06:01:19,812 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 36 [2020-10-13 06:01:20,069 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 36 [2020-10-13 06:01:20,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:20,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:20,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:20,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:20,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:01:20,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:20,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:01:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:01:20,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:20,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:20,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:01:20,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:01:20,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430599455] [2020-10-13 06:01:20,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:20,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:20,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77210157] [2020-10-13 06:01:20,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:20,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:20,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:20,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:20,345 INFO L87 Difference]: Start difference. First operand 591 states and 678 transitions. Second operand 13 states. [2020-10-13 06:01:20,850 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:01:21,338 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-13 06:01:21,756 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-10-13 06:01:22,027 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-13 06:01:22,450 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 06:01:22,804 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2020-10-13 06:01:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:23,161 INFO L93 Difference]: Finished difference Result 1179 states and 1396 transitions. [2020-10-13 06:01:23,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:01:23,162 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 231 [2020-10-13 06:01:23,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:23,165 INFO L225 Difference]: With dead ends: 1179 [2020-10-13 06:01:23,165 INFO L226 Difference]: Without dead ends: 637 [2020-10-13 06:01:23,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:23,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-10-13 06:01:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 591. [2020-10-13 06:01:23,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-13 06:01:23,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 677 transitions. [2020-10-13 06:01:23,193 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 677 transitions. Word has length 231 [2020-10-13 06:01:23,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:23,194 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 677 transitions. [2020-10-13 06:01:23,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 677 transitions. [2020-10-13 06:01:23,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-13 06:01:23,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:23,197 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:23,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:01:23,197 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:23,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:23,197 INFO L82 PathProgramCache]: Analyzing trace with hash -821700737, now seen corresponding path program 1 times [2020-10-13 06:01:23,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:23,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487418685] [2020-10-13 06:01:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:25,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:25,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-13 06:01:25,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1877 [2020-10-13 06:01:25,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:01:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:01:25,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:25,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:25,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:25,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:25,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:25,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:25,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:25,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:25,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:01:25,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:25,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:25,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:25,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:25,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:25,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:25,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:01:25,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:01:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:01:26,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487418685] [2020-10-13 06:01:26,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:26,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:01:26,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489690053] [2020-10-13 06:01:26,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:01:26,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:26,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:01:26,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:01:26,092 INFO L87 Difference]: Start difference. First operand 591 states and 677 transitions. Second operand 14 states. [2020-10-13 06:01:26,774 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-13 06:01:26,966 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 06:01:27,168 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 06:01:27,385 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-13 06:01:27,833 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-13 06:01:28,083 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 06:01:28,318 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 06:01:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:28,717 INFO L93 Difference]: Finished difference Result 1180 states and 1399 transitions. [2020-10-13 06:01:28,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:01:28,723 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 243 [2020-10-13 06:01:28,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:28,726 INFO L225 Difference]: With dead ends: 1180 [2020-10-13 06:01:28,726 INFO L226 Difference]: Without dead ends: 608 [2020-10-13 06:01:28,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:01:28,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-10-13 06:01:28,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 606. [2020-10-13 06:01:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-10-13 06:01:28,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 693 transitions. [2020-10-13 06:01:28,746 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 693 transitions. Word has length 243 [2020-10-13 06:01:28,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:28,747 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 693 transitions. [2020-10-13 06:01:28,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:01:28,747 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 693 transitions. [2020-10-13 06:01:28,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 06:01:28,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:28,750 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:28,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:01:28,750 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:28,750 INFO L82 PathProgramCache]: Analyzing trace with hash 2087885438, now seen corresponding path program 1 times [2020-10-13 06:01:28,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:28,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992103038] [2020-10-13 06:01:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:28,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:28,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-13 06:01:30,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:30,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1502 [2020-10-13 06:01:30,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:30,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:01:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:01:30,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:30,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:30,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:01:30,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:30,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:01:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:01:30,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:30,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:30,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:01:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:01:30,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:01:31,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992103038] [2020-10-13 06:01:31,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:31,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:31,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426032062] [2020-10-13 06:01:31,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:31,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:31,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:31,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:31,033 INFO L87 Difference]: Start difference. First operand 606 states and 693 transitions. Second operand 5 states. [2020-10-13 06:01:32,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:32,037 INFO L93 Difference]: Finished difference Result 1232 states and 1464 transitions. [2020-10-13 06:01:32,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:32,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 245 [2020-10-13 06:01:32,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:32,040 INFO L225 Difference]: With dead ends: 1232 [2020-10-13 06:01:32,040 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:01:32,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 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 06:01:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:01:32,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:01:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:01:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 301 transitions. [2020-10-13 06:01:32,053 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 301 transitions. Word has length 245 [2020-10-13 06:01:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:32,053 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 301 transitions. [2020-10-13 06:01:32,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 301 transitions. [2020-10-13 06:01:32,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-13 06:01:32,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:32,055 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:01:32,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:01:32,055 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:32,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:32,056 INFO L82 PathProgramCache]: Analyzing trace with hash 613206138, now seen corresponding path program 1 times [2020-10-13 06:01:32,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:32,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153470619] [2020-10-13 06:01:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:36,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4233 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:01:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:01:36,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:36,772 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:01:36,943 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-10-13 06:01:37,095 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2020-10-13 06:01:37,232 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2020-10-13 06:01:37,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:37,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:37,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:37,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:37,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:37,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:37,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:37,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:37,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:37,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:37,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:37,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:37,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:37,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:37,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:37,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:37,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:37,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:37,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:37,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:37,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:37,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:37,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:37,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:37,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:37,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:37,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:01:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:01:37,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153470619] [2020-10-13 06:01:37,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:37,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:37,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030762823] [2020-10-13 06:01:37,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:37,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:37,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:37,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:37,866 INFO L87 Difference]: Start difference. First operand 271 states and 301 transitions. Second operand 13 states. [2020-10-13 06:01:38,702 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:01:39,009 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2020-10-13 06:01:39,309 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-10-13 06:01:39,579 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2020-10-13 06:01:40,002 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2020-10-13 06:01:40,372 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2020-10-13 06:01:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:41,025 INFO L93 Difference]: Finished difference Result 551 states and 643 transitions. [2020-10-13 06:01:41,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:41,026 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 256 [2020-10-13 06:01:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:41,029 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:01:41,029 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:01:41,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:01:41,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:01:41,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:01:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:01:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 382 transitions. [2020-10-13 06:01:41,040 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 382 transitions. Word has length 256 [2020-10-13 06:01:41,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:41,041 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 382 transitions. [2020-10-13 06:01:41,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:41,041 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 382 transitions. [2020-10-13 06:01:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-13 06:01:41,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:41,043 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:01:41,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:01:41,044 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:41,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:41,044 INFO L82 PathProgramCache]: Analyzing trace with hash -320502265, now seen corresponding path program 1 times [2020-10-13 06:01:41,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:41,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478339727] [2020-10-13 06:01:41,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-13 06:01:41,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:41,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-13 06:01:41,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:01:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:01:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:41,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:41,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:41,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:41,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:41,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:41,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:01:41,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:41,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:01:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:01:42,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478339727] [2020-10-13 06:01:42,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:42,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:01:42,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760045442] [2020-10-13 06:01:42,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:01:42,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:42,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:01:42,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:42,205 INFO L87 Difference]: Start difference. First operand 346 states and 382 transitions. Second operand 6 states. [2020-10-13 06:01:43,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:43,092 INFO L93 Difference]: Finished difference Result 708 states and 814 transitions. [2020-10-13 06:01:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:43,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 268 [2020-10-13 06:01:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:43,096 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:01:43,096 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:01:43,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:01:43,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:01:43,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:01:43,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 380 transitions. [2020-10-13 06:01:43,107 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 380 transitions. Word has length 268 [2020-10-13 06:01:43,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:43,108 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 380 transitions. [2020-10-13 06:01:43,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:01:43,108 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 380 transitions. [2020-10-13 06:01:43,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-13 06:01:43,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:43,110 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:43,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:01:43,111 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:43,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:43,111 INFO L82 PathProgramCache]: Analyzing trace with hash -308818461, now seen corresponding path program 1 times [2020-10-13 06:01:43,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:43,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782125607] [2020-10-13 06:01:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:43,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:43,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-13 06:01:44,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-13 06:01:44,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:01:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:01:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,492 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:01:44,614 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-13 06:01:45,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:45,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:45,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:45,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:45,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:45,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:45,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:45,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:45,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:45,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:45,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:45,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:45,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:45,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:45,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:45,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:45,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:45,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:45,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:01:45,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:01:45,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782125607] [2020-10-13 06:01:45,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:45,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:45,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473794726] [2020-10-13 06:01:45,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:45,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:45,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:45,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:45,303 INFO L87 Difference]: Start difference. First operand 346 states and 380 transitions. Second operand 13 states. [2020-10-13 06:01:45,852 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:01:46,169 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-13 06:01:46,460 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-10-13 06:01:46,765 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-13 06:01:47,022 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2020-10-13 06:01:47,360 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2020-10-13 06:01:47,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:47,616 INFO L93 Difference]: Finished difference Result 698 states and 799 transitions. [2020-10-13 06:01:47,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:47,617 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 271 [2020-10-13 06:01:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:47,619 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:01:47,620 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:47,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:47,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:47,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 459 transitions. [2020-10-13 06:01:47,632 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 459 transitions. Word has length 271 [2020-10-13 06:01:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:47,633 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 459 transitions. [2020-10-13 06:01:47,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:47,633 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 459 transitions. [2020-10-13 06:01:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-13 06:01:47,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:47,635 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:01:47,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:01:47,636 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:47,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:47,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1791769497, now seen corresponding path program 1 times [2020-10-13 06:01:47,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:47,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654974192] [2020-10-13 06:01:47,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:47,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-13 06:01:48,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:48,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-13 06:01:48,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:01:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:01:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:48,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:48,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:48,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:48,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:48,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:48,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:48,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:48,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:48,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:48,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:48,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:48,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:01:48,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:01:48,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:01:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:01:48,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654974192] [2020-10-13 06:01:48,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:48,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:48,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976842076] [2020-10-13 06:01:48,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:48,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:48,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:48,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:48,378 INFO L87 Difference]: Start difference. First operand 418 states and 459 transitions. Second operand 5 states. [2020-10-13 06:01:49,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:49,162 INFO L93 Difference]: Finished difference Result 851 states and 967 transitions. [2020-10-13 06:01:49,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:49,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-10-13 06:01:49,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:49,164 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:01:49,165 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:49,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 06:01:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:49,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:49,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:49,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 457 transitions. [2020-10-13 06:01:49,177 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 457 transitions. Word has length 273 [2020-10-13 06:01:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:49,177 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 457 transitions. [2020-10-13 06:01:49,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 457 transitions. [2020-10-13 06:01:49,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-13 06:01:49,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:49,180 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:01:49,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:01:49,180 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:49,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1062800640, now seen corresponding path program 1 times [2020-10-13 06:01:49,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:49,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546287712] [2020-10-13 06:01:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:49,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-13 06:01:50,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:50,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-10-13 06:01:50,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:01:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:01:50,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:50,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:50,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:50,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:50,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:50,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:50,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:50,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:50,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:50,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:50,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:50,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:50,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:50,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:50,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:50,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:50,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:50,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:50,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:50,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:50,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:50,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:50,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:50,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:50,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:50,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:50,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:50,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:01:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:50,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:01:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:01:50,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546287712] [2020-10-13 06:01:50,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:50,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:50,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179842934] [2020-10-13 06:01:50,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:50,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:50,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:50,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:50,560 INFO L87 Difference]: Start difference. First operand 418 states and 457 transitions. Second operand 5 states. [2020-10-13 06:01:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:51,278 INFO L93 Difference]: Finished difference Result 849 states and 960 transitions. [2020-10-13 06:01:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:51,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 291 [2020-10-13 06:01:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:51,282 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:01:51,282 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:51,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:01:51,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 455 transitions. [2020-10-13 06:01:51,293 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 455 transitions. Word has length 291 [2020-10-13 06:01:51,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:51,293 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 455 transitions. [2020-10-13 06:01:51,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 455 transitions. [2020-10-13 06:01:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-13 06:01:51,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:51,296 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:51,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:01:51,296 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:51,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:51,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1625101773, now seen corresponding path program 1 times [2020-10-13 06:01:51,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:51,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539530139] [2020-10-13 06:01:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-13 06:01:51,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-13 06:01:51,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:01:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:01:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:51,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:51,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:51,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:51,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:51,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:51,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:01:51,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:01:52,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539530139] [2020-10-13 06:01:52,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:52,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:52,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934281843] [2020-10-13 06:01:52,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:52,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:52,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:52,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:52,095 INFO L87 Difference]: Start difference. First operand 418 states and 455 transitions. Second operand 5 states. [2020-10-13 06:01:52,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:52,852 INFO L93 Difference]: Finished difference Result 853 states and 959 transitions. [2020-10-13 06:01:52,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:52,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 290 [2020-10-13 06:01:52,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:52,855 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:01:52,855 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:52,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 06:01:52,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 453 transitions. [2020-10-13 06:01:52,866 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 453 transitions. Word has length 290 [2020-10-13 06:01:52,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:52,866 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 453 transitions. [2020-10-13 06:01:52,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:52,867 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 453 transitions. [2020-10-13 06:01:52,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-13 06:01:52,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:52,869 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:01:52,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:01:52,869 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:52,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:52,870 INFO L82 PathProgramCache]: Analyzing trace with hash 601848502, now seen corresponding path program 1 times [2020-10-13 06:01:52,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:52,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556219810] [2020-10-13 06:01:52,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:52,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:53,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:53,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:54,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1252 [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:01:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:54,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:54,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:54,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:54,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:54,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:54,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:54,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:54,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:54,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:54,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:54,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:54,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:54,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:54,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:54,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:54,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:54,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:54,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:54,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:54,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:54,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:54,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:54,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:54,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:54,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:01:54,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:54,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:54,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:01:54,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:01:54,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556219810] [2020-10-13 06:01:54,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:54,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:54,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204288731] [2020-10-13 06:01:54,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:54,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:54,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:54,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:54,776 INFO L87 Difference]: Start difference. First operand 418 states and 453 transitions. Second operand 13 states. [2020-10-13 06:01:55,488 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:01:55,807 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:01:56,045 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:01:56,321 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:01:56,600 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:01:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:56,841 INFO L93 Difference]: Finished difference Result 835 states and 935 transitions. [2020-10-13 06:01:56,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:56,841 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 300 [2020-10-13 06:01:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:56,844 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:01:56,844 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:56,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:01:56,855 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 300 [2020-10-13 06:01:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:56,856 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:01:56,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:56,856 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:01:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-13 06:01:56,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:56,859 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:01:56,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:01:56,859 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:56,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:56,859 INFO L82 PathProgramCache]: Analyzing trace with hash -31675985, now seen corresponding path program 1 times [2020-10-13 06:01:56,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:56,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589229569] [2020-10-13 06:01:56,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:56,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:56,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-13 06:01:57,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:57,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-10-13 06:01:57,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:01:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:01:57,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:57,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:57,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:57,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:57,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:57,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:01:57,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:57,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:57,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:01:57,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:01:57,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:01:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,770 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:01:57,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589229569] [2020-10-13 06:01:57,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:57,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:57,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561356698] [2020-10-13 06:01:57,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:57,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:57,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:57,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:57,773 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 5 states. [2020-10-13 06:01:58,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:58,532 INFO L93 Difference]: Finished difference Result 984 states and 1106 transitions. [2020-10-13 06:01:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:58,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 309 [2020-10-13 06:01:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:58,535 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:01:58,535 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:58,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 06:01:58,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:58,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:01:58,548 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 309 [2020-10-13 06:01:58,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:58,548 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:01:58,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:01:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-13 06:01:58,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:58,551 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:58,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:01:58,552 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:58,552 INFO L82 PathProgramCache]: Analyzing trace with hash 280030226, now seen corresponding path program 1 times [2020-10-13 06:01:58,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:58,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860082552] [2020-10-13 06:01:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:58,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:59,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-13 06:01:59,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:59,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-13 06:01:59,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:01:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:01:59,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:59,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:59,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:59,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:59,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:59,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:59,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:59,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:59,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:59,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:01:59,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:59,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:59,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:59,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:59,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:59,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:59,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:59,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:59,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:59,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:59,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:59,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:59,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:59,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:59,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:01:59,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:59,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:01:59,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:01:59,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:01:59,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860082552] [2020-10-13 06:01:59,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:59,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:59,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709817530] [2020-10-13 06:01:59,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:59,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:59,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:59,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:59,566 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 5 states. [2020-10-13 06:02:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:00,305 INFO L93 Difference]: Finished difference Result 978 states and 1095 transitions. [2020-10-13 06:02:00,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:00,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2020-10-13 06:02:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:00,310 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:02:00,310 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:00,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:02:00,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 524 transitions. [2020-10-13 06:02:00,323 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 524 transitions. Word has length 314 [2020-10-13 06:02:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:00,323 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 524 transitions. [2020-10-13 06:02:00,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 524 transitions. [2020-10-13 06:02:00,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-13 06:02:00,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:00,326 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:02:00,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:02:00,326 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:00,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:00,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1067881890, now seen corresponding path program 1 times [2020-10-13 06:02:00,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:00,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566651072] [2020-10-13 06:02:00,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:00,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-13 06:02:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1845 [2020-10-13 06:02:02,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:02:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:02:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:02,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:02,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:02,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:02,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:02,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:02,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:02,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:02:02,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:02:02,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,826 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:02:02,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566651072] [2020-10-13 06:02:02,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:02,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:02,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980316101] [2020-10-13 06:02:02,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:02,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:02,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:02,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:02,828 INFO L87 Difference]: Start difference. First operand 483 states and 524 transitions. Second operand 13 states. [2020-10-13 06:02:03,655 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:02:03,877 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:02:04,119 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:02:04,321 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:02:04,643 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:02:04,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:04,986 INFO L93 Difference]: Finished difference Result 962 states and 1070 transitions. [2020-10-13 06:02:04,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:02:04,986 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 320 [2020-10-13 06:02:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:04,990 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:02:04,990 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:02:04,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:02:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:02:05,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:02:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:02:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 588 transitions. [2020-10-13 06:02:05,003 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 588 transitions. Word has length 320 [2020-10-13 06:02:05,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:05,004 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 588 transitions. [2020-10-13 06:02:05,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 588 transitions. [2020-10-13 06:02:05,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-13 06:02:05,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:05,007 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:02:05,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:02:05,007 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:05,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1854638011, now seen corresponding path program 1 times [2020-10-13 06:02:05,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:05,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932092130] [2020-10-13 06:02:05,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:02:05,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:05,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:05,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:05,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:05,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:05,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:05,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:02:05,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:05,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:02:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:02:05,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:02:05,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:02:05,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:02:06,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932092130] [2020-10-13 06:02:06,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:06,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:06,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172516430] [2020-10-13 06:02:06,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:06,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:06,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:06,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:06,137 INFO L87 Difference]: Start difference. First operand 539 states and 588 transitions. Second operand 5 states. [2020-10-13 06:02:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:06,875 INFO L93 Difference]: Finished difference Result 1088 states and 1218 transitions. [2020-10-13 06:02:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:06,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 325 [2020-10-13 06:02:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:06,879 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:02:06,879 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:02:06,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 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 06:02:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:02:06,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:02:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:02:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 586 transitions. [2020-10-13 06:02:06,892 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 586 transitions. Word has length 325 [2020-10-13 06:02:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:06,892 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 586 transitions. [2020-10-13 06:02:06,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 586 transitions. [2020-10-13 06:02:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-13 06:02:06,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:06,895 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 06:02:06,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:02:06,896 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:06,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2057184553, now seen corresponding path program 1 times [2020-10-13 06:02:06,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:06,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327829928] [2020-10-13 06:02:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-13 06:02:07,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-13 06:02:07,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:02:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:02:07,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:07,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:02:07,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:07,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:07,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:07,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:07,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:07,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:02:07,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:02:07,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327829928] [2020-10-13 06:02:07,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:07,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:07,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455023431] [2020-10-13 06:02:07,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:07,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:07,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:07,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:07,995 INFO L87 Difference]: Start difference. First operand 539 states and 586 transitions. Second operand 5 states. [2020-10-13 06:02:08,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:08,712 INFO L93 Difference]: Finished difference Result 1097 states and 1221 transitions. [2020-10-13 06:02:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:08,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 329 [2020-10-13 06:02:08,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:08,716 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:02:08,716 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:02:08,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 06:02:08,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:02:08,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:02:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:02:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 525 transitions. [2020-10-13 06:02:08,727 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 525 transitions. Word has length 329 [2020-10-13 06:02:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:08,728 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 525 transitions. [2020-10-13 06:02:08,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:08,728 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 525 transitions. [2020-10-13 06:02:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-13 06:02:08,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:08,731 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:02:08,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:02:08,731 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:08,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:08,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1287863031, now seen corresponding path program 1 times [2020-10-13 06:02:08,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:08,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905177685] [2020-10-13 06:02:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:08,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:10,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:10,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-10-13 06:02:10,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:10,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2122 [2020-10-13 06:02:10,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:02:10,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:02:10,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:11,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:11,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:11,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:11,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:11,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:11,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:11,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:11,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:11,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:11,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:11,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:11,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:11,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:11,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:11,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:11,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:11,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:11,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:11,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:11,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:11,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:11,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:11,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:11,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:11,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:11,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:11,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:11,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:11,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:11,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:02:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:11,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:11,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:02:11,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:11,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:11,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:02:11,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:02:11,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905177685] [2020-10-13 06:02:11,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:11,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:11,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816608002] [2020-10-13 06:02:11,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:11,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:11,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:11,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:11,583 INFO L87 Difference]: Start difference. First operand 481 states and 525 transitions. Second operand 13 states. [2020-10-13 06:02:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:13,160 INFO L93 Difference]: Finished difference Result 969 states and 1087 transitions. [2020-10-13 06:02:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:13,166 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 338 [2020-10-13 06:02:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:13,169 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:02:13,169 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:02:13,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:02:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:02:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:02:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:02:13,181 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 338 [2020-10-13 06:02:13,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:13,182 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:02:13,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:02:13,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-13 06:02:13,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:13,185 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-13 06:02:13,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:02:13,185 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:13,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:13,186 INFO L82 PathProgramCache]: Analyzing trace with hash -350659292, now seen corresponding path program 1 times [2020-10-13 06:02:13,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:13,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164888981] [2020-10-13 06:02:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:13,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-13 06:02:14,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1145 [2020-10-13 06:02:14,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:02:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:02:14,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:14,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:14,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:14,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:14,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:14,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:14,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:14,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:14,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:14,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:14,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:14,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:14,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:14,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:02:14,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:02:14,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:02:14,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:02:14,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164888981] [2020-10-13 06:02:14,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:14,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:14,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661059803] [2020-10-13 06:02:14,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:14,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:14,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:14,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:14,785 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 5 states. [2020-10-13 06:02:15,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:15,522 INFO L93 Difference]: Finished difference Result 980 states and 1101 transitions. [2020-10-13 06:02:15,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:15,523 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-10-13 06:02:15,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:15,526 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:02:15,526 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:15,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:02:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:15,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:15,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:02:15,535 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 341 [2020-10-13 06:02:15,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:15,535 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:02:15,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:02:15,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-13 06:02:15,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:15,538 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:02:15,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:02:15,539 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:15,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:15,539 INFO L82 PathProgramCache]: Analyzing trace with hash 928859535, now seen corresponding path program 1 times [2020-10-13 06:02:15,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:15,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627062112] [2020-10-13 06:02:15,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:15,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:15,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:17,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:17,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-13 06:02:17,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2227 [2020-10-13 06:02:17,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:02:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:02:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:18,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:18,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:18,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:18,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:18,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:18,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:18,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:18,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:18,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:18,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:18,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:18,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:18,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:18,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:18,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:18,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:18,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:18,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:18,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:18,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:02:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:02:18,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:02:18,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627062112] [2020-10-13 06:02:18,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:18,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:18,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603325148] [2020-10-13 06:02:18,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:18,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:18,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:18,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:18,468 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 13 states. [2020-10-13 06:02:18,999 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-13 06:02:19,375 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:02:19,612 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:02:19,869 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:02:20,070 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:02:20,316 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:02:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:20,587 INFO L93 Difference]: Finished difference Result 956 states and 1070 transitions. [2020-10-13 06:02:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:20,588 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 343 [2020-10-13 06:02:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:20,591 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:02:20,592 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:02:20,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:02:20,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:02:20,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:02:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 590 transitions. [2020-10-13 06:02:20,604 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 590 transitions. Word has length 343 [2020-10-13 06:02:20,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:20,605 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 590 transitions. [2020-10-13 06:02:20,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 590 transitions. [2020-10-13 06:02:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-13 06:02:20,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:20,608 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:02:20,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:02:20,608 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:20,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:20,609 INFO L82 PathProgramCache]: Analyzing trace with hash -2027811197, now seen corresponding path program 1 times [2020-10-13 06:02:20,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:20,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315825602] [2020-10-13 06:02:20,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:20,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-13 06:02:21,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-13 06:02:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:02:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:02:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:21,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:21,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:21,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:21,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:21,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:21,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:21,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:21,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:21,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:02:21,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:21,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:21,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:02:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:02:21,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:02:21,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:02:21,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:02:21,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315825602] [2020-10-13 06:02:21,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:21,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:21,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445253970] [2020-10-13 06:02:21,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:21,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:21,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:21,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:21,673 INFO L87 Difference]: Start difference. First operand 537 states and 590 transitions. Second operand 5 states. [2020-10-13 06:02:22,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:22,442 INFO L93 Difference]: Finished difference Result 1083 states and 1219 transitions. [2020-10-13 06:02:22,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:22,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 344 [2020-10-13 06:02:22,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:22,445 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:02:22,446 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:02:22,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 06:02:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:02:22,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:02:22,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:02:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 587 transitions. [2020-10-13 06:02:22,456 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 587 transitions. Word has length 344 [2020-10-13 06:02:22,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:22,457 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 587 transitions. [2020-10-13 06:02:22,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:22,457 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 587 transitions. [2020-10-13 06:02:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-13 06:02:22,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:22,459 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-13 06:02:22,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:02:22,460 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:22,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:22,460 INFO L82 PathProgramCache]: Analyzing trace with hash 497517288, now seen corresponding path program 1 times [2020-10-13 06:02:22,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:22,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006792713] [2020-10-13 06:02:22,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:22,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 361 [2020-10-13 06:02:23,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 971 [2020-10-13 06:02:23,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:02:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:02:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:23,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:23,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:23,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:23,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:23,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:23,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:23,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:23,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:23,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:23,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:23,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:23,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:23,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:02:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,921 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:02:23,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006792713] [2020-10-13 06:02:23,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:23,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:02:23,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742558958] [2020-10-13 06:02:23,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:02:23,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:23,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:02:23,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:23,922 INFO L87 Difference]: Start difference. First operand 537 states and 587 transitions. Second operand 6 states. [2020-10-13 06:02:24,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:24,648 INFO L93 Difference]: Finished difference Result 1085 states and 1214 transitions. [2020-10-13 06:02:24,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:24,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 343 [2020-10-13 06:02:24,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:24,652 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:02:24,652 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:02:24,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:02:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:02:24,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:02:24,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:02:24,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 561 transitions. [2020-10-13 06:02:24,662 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 561 transitions. Word has length 343 [2020-10-13 06:02:24,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:24,662 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 561 transitions. [2020-10-13 06:02:24,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:02:24,663 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 561 transitions. [2020-10-13 06:02:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-10-13 06:02:24,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:24,665 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:02:24,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:02:24,666 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:24,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:24,666 INFO L82 PathProgramCache]: Analyzing trace with hash 904302651, now seen corresponding path program 1 times [2020-10-13 06:02:24,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:24,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063589490] [2020-10-13 06:02:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:24,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:24,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-13 06:02:25,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:25,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-13 06:02:25,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:02:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:02:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:25,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:25,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:25,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:25,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:25,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:25,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:25,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:25,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:02:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:02:25,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:02:25,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:02:25,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:02:25,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063589490] [2020-10-13 06:02:25,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:25,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:25,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317040502] [2020-10-13 06:02:25,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:25,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:25,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:25,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:25,629 INFO L87 Difference]: Start difference. First operand 514 states and 561 transitions. Second operand 5 states. [2020-10-13 06:02:26,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:26,173 INFO L93 Difference]: Finished difference Result 897 states and 991 transitions. [2020-10-13 06:02:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:26,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 365 [2020-10-13 06:02:26,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:26,174 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:02:26,175 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:02:26,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 06:02:26,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:02:26,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:02:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:02:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:02:26,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 365 [2020-10-13 06:02:26,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:26,179 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:02:26,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:26,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:02:26,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:02:26,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:02:26,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:02:26,771 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 06:02:26,879 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 170 [2020-10-13 06:02:27,015 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-10-13 06:02:32,190 WARN L193 SmtUtils]: Spent 5.16 s on a formula simplification. DAG size of input: 331 DAG size of output: 234 [2020-10-13 06:02:34,484 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 191 DAG size of output: 153 [2020-10-13 06:02:36,200 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 178 DAG size of output: 121 [2020-10-13 06:02:36,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:02:36,205 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:02:36,206 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:02:36,206 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:02:36,206 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:02:36,206 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,206 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,206 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,206 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,207 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,207 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,207 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:02:36,207 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:02:36,207 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:02:36,207 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:02:36,207 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,208 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:02:36,209 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:02:36,210 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:02:36,210 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:02:36,210 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:02:36,210 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:02:36,210 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:02:36,210 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2020-10-13 06:02:36,210 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,211 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:02:36,212 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:02:36,213 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:02:36,214 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:02:36,215 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,216 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:02:36,217 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,218 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:02:36,219 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:02:36,220 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:02:36,221 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:02:36,222 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse41 (= |old(~a21~0)| 1)) (.cse13 (= |old(~a20~0)| 1)) (.cse56 (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|)))) (.cse58 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse17 (= |old(~a7~0)| 1)) (.cse54 (not (= |calculate_output_#in~input| 3))) (.cse55 (not (= |calculate_output_#in~input| 2))) (.cse57 (not (= |calculate_output_#in~input| 4))) (.cse59 (not (= |calculate_output_#in~input| 6))) (.cse24 (= ~a16~0 |old(~a16~0)|)) (.cse44 (= |old(~a17~0)| |old(~a20~0)|)) (.cse52 (= ~a8~0 15)) (.cse51 (= ~a17~0 ~a7~0)) (.cse23 (= ~a21~0 1)) (.cse60 (= 14 ~a8~0)) (.cse53 (= 5 ~a16~0)) (.cse18 (= ~a7~0 |old(~a7~0)|)) (.cse29 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= ~a21~0 |old(~a21~0)|)) (.cse19 (= ~a20~0 |old(~a20~0)|)) (.cse42 (= ~a8~0 13)) (.cse21 (= ~a16~0 4))) (let ((.cse40 (and .cse18 .cse29 .cse20 .cse19 .cse42 .cse21)) (.cse28 (not (<= 4 |old(~a16~0)|))) (.cse34 (not (<= |old(~a21~0)| 1))) (.cse35 (not (<= 1 |old(~a21~0)|))) (.cse30 (<= ~a16~0 4)) (.cse25 (= ~a8~0 |old(~a8~0)|)) (.cse31 (<= 4 ~a16~0)) (.cse32 (<= ~a21~0 1)) (.cse33 (<= 1 ~a21~0)) (.cse37 (not (<= |old(~a16~0)| 4))) (.cse45 (= |old(~a7~0)| |old(~a20~0)|)) (.cse3 (and .cse18 .cse29 .cse23 .cse19 .cse60 .cse53)) (.cse26 (and .cse29 .cse23 .cse19 .cse60 .cse21 .cse51)) (.cse43 (and .cse18 .cse29 .cse23 .cse19 .cse52 .cse53)) (.cse4 (not (= 5 |old(~a16~0)|))) (.cse22 (= ~a17~0 1)) (.cse49 (not (= |old(~a17~0)| |old(~a21~0)|))) (.cse36 (not (<= |old(~a7~0)| 0))) (.cse47 (not .cse44)) (.cse50 (= ~a21~0 ~a17~0)) (.cse15 (not (= 6 |old(~a16~0)|))) (.cse46 (and .cse18 .cse29 .cse23 .cse19 .cse24 .cse52)) (.cse11 (and .cse54 .cse55 .cse57 (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) .cse59)) (.cse39 (not (<= |old(~a20~0)| 0))) (.cse9 (not (= |old(~a17~0)| 1))) (.cse0 (not (= 14 |old(~a8~0)|))) (.cse1 (not .cse17)) (.cse2 (not (= 0 |old(~a20~0)|))) (.cse7 (not (= 0 |old(~a17~0)|))) (.cse14 (and .cse56 (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) .cse58)) (.cse10 (not .cse13)) (.cse38 (not (<= |old(~a17~0)| 0))) (.cse48 (and .cse18 .cse29 .cse23 .cse19 .cse52 .cse21)) (.cse16 (not (= 15 |old(~a8~0)|))) (.cse8 (not (= |old(~a8~0)| 13))) (.cse61 (= ~a7~0 0)) (.cse27 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse5 (not .cse41)) (.cse6 (not (= ~a12~0 8))) (.cse62 (not (= |old(~a7~0)| 0))) (.cse12 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or (and (or .cse8 .cse9 .cse1 .cse10 .cse11 .cse6 .cse12) (or .cse13 .cse14 .cse15 .cse16 .cse5 .cse6 .cse17 .cse7)) (and .cse18 .cse19 (or (and .cse20 .cse21 .cse22) (and .cse23 (not (= ~a20~0 1)) (= ~a17~0 0))) .cse24 .cse25)) (or .cse26 .cse0 .cse27 .cse10 .cse5 .cse6 .cse12 .cse7) (or .cse28 (and .cse18 .cse29 .cse19 .cse30 .cse25 .cse31 .cse32 .cse33) .cse34 .cse35 (and (not (< 1 |old(~a7~0)|)) .cse36) (not (<= |old(~a8~0)| 13)) .cse37 (not (<= 13 |old(~a8~0)|)) (and (not (< 1 |old(~a17~0)|)) .cse38) (and (not (< 1 |old(~a20~0)|)) .cse39) .cse6) (or .cse8 .cse9 .cse1 .cse40 .cse2 .cse41 .cse11 .cse6 .cse12) (or .cse8 .cse9 .cse36 .cse10 (and .cse18 .cse29 .cse23 .cse19 .cse42 .cse21) .cse5 .cse6 .cse12) (or .cse43 .cse14 .cse10 (and (not (< |old(~a20~0)| |old(~a7~0)|)) (not (<= (+ |old(~a7~0)| 1) |old(~a20~0)|))) .cse4 .cse16 .cse5 .cse6 .cse7) (or .cse44 .cse45 .cse14 .cse15 .cse10 .cse46 .cse16 .cse5 .cse6) (or .cse8 (and .cse18 .cse29 .cse20 .cse19 .cse24 .cse42) .cse1 .cse15 .cse10 .cse41 .cse11 .cse6 .cse7) (or .cse14 .cse47 .cse2 .cse48 .cse16 .cse5 .cse6 .cse12) (or .cse8 .cse1 .cse40 .cse10 .cse41 .cse11 .cse6 .cse12 .cse7) (or .cse8 .cse49 .cse9 .cse27 .cse47 (and .cse29 .cse50 .cse19 .cse42 .cse21 .cse51) .cse6 .cse12) (or .cse43 .cse1 .cse2 .cse4 .cse16 .cse5 .cse6 .cse7) (or .cse13 (and .cse18 .cse29 .cse19 .cse23 .cse52 .cse53) (and .cse54 .cse55 .cse56 .cse57 .cse58 .cse59) .cse4 .cse16 .cse5 .cse6 .cse17) (or .cse28 (not (<= 14 |old(~a8~0)|)) .cse34 (not (<= 1 |old(~a7~0)|)) .cse35 (and (<= 1 ~a7~0) .cse29 .cse19 .cse30 .cse25 .cse31 .cse32 .cse33 (<= ~a7~0 1)) .cse37 (not (<= |old(~a7~0)| 1)) (not (<= |old(~a8~0)| 14)) .cse38 .cse6 .cse39) (or .cse0 .cse47 (and .cse29 .cse23 .cse19 .cse60 .cse53 (= ~a20~0 ~a7~0)) (not .cse45) .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse10 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 (not (= 0 |old(~a21~0)|)) (and .cse18 .cse29 .cse19 .cse42 (= ~a21~0 0) .cse53) .cse1 .cse10 .cse4 .cse11 .cse6) (or .cse26 .cse0 .cse27 .cse47 .cse5 .cse6 .cse12 .cse7) (or .cse9 .cse43 .cse36 .cse4 .cse11 .cse16 .cse5 .cse6) (or .cse9 .cse13 .cse14 (and .cse18 .cse23 .cse19 .cse24 .cse52 .cse22) .cse16 .cse5 .cse6 .cse12 .cse17) (or .cse8 .cse49 .cse9 .cse36 .cse47 .cse15 (and .cse18 .cse29 .cse50 .cse19 .cse24 .cse42) .cse6) (or .cse9 .cse15 .cse46 .cse11 .cse16 .cse5 .cse6 .cse39 .cse17) (or .cse9 .cse0 .cse10 (and .cse29 .cse23 .cse19 .cse60 .cse21 .cse61) .cse5 .cse6 .cse62 .cse12) (or .cse1 .cse2 .cse48 .cse16 .cse5 .cse6 .cse12 .cse7) (or .cse14 .cse10 .cse38 .cse48 .cse16 .cse5 .cse6 .cse12 .cse17) (or .cse8 (and .cse29 .cse23 .cse19 .cse42 .cse21 .cse61) .cse27 .cse5 .cse6 .cse62 .cse12)))) [2020-10-13 06:02:36,223 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:02:36,223 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,223 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,223 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,223 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,223 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:02:36,223 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:02:36,224 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,225 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:02:36,226 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,227 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:02:36,228 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:02:36,229 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:02:36,229 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:02:36,229 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= 1 ~a17~0) (<= ~a16~0 5) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0) (<= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0)) [2020-10-13 06:02:36,229 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:02:36,229 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:02:36,229 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= ~a12~0 8))) [2020-10-13 06:02:36,229 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:02:36,230 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse21 (= 6 main_~input~0)) (.cse22 (= main_~input~0 4)) (.cse23 (= 3 main_~input~0)) (.cse24 (= 2 main_~input~0)) (.cse1 (= ~a7~0 1)) (.cse7 (= ~a21~0 1)) (.cse28 (= ~a20~0 ~a7~0)) (.cse13 (= ~a20~0 1))) (let ((.cse14 (<= ~a16~0 4)) (.cse11 (<= ~a20~0 0)) (.cse16 (<= 4 ~a16~0)) (.cse18 (<= 1 ~a21~0)) (.cse25 (not .cse13)) (.cse33 (not .cse28)) (.cse3 (not .cse7)) (.cse32 (= ~a21~0 ~a17~0)) (.cse12 (<= ~a7~0 0)) (.cse15 (<= ~a17~0 0)) (.cse17 (<= ~a21~0 1)) (.cse0 (= ~a20~0 0)) (.cse26 (= ~a20~0 ~a17~0)) (.cse30 (= ~a17~0 ~a7~0)) (.cse27 (= 14 ~a8~0)) (.cse5 (= ~a16~0 4)) (.cse31 (= ~a7~0 0)) (.cse8 (= ~a16~0 6)) (.cse29 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse9 (= ~a8~0 15)) (.cse10 (not .cse1)) (.cse20 (= ~a17~0 0)) (.cse2 (or (= 5 main_~input~0) .cse21 .cse22 .cse23 (= main_~input~0 1) .cse24)) (.cse4 (= ~a8~0 13)) (.cse19 (= 5 ~a16~0)) (.cse6 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse2 .cse9 .cse10 .cse6 .cse11) (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a21~0)| 1)) (and .cse7 .cse12 .cse4 .cse13 .cse5 .cse6) (and (<= 1 ~a7~0) (<= 14 ~a8~0) (<= ~a8~0 14) .cse14 .cse15 .cse16 .cse17 .cse18 (<= ~a7~0 1) .cse11) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (and (<= 13 ~a8~0) .cse14 (or (< 1 ~a20~0) .cse11) .cse16 (or (< 1 ~a7~0) .cse12) .cse17 (or .cse15 (< 1 ~a17~0)) .cse18 (<= ~a8~0 13)) (not (<= 1 |old(~a20~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse7 .cse2 .cse9 .cse19) (and .cse1 .cse8 .cse2 .cse3 .cse4 .cse13 .cse20) (and .cse7 (or .cse21 (= ~a16~0 main_~input~0) .cse22 .cse23 (= ~a21~0 main_~input~0) .cse24) .cse9 .cse10 .cse19 .cse25) (not (<= 1 |old(~a21~0)|)) (and .cse26 .cse7 .cse27 .cse19 .cse28 .cse20) (and .cse0 .cse26 .cse7 .cse29 .cse9 .cse5) (and .cse7 .cse4 .cse5 .cse30 .cse31) (not (= ~a12~0 8)) (and .cse7 .cse27 .cse13 .cse5 .cse30 .cse20) (and .cse7 .cse29 .cse9 .cse5 .cse10 .cse25 .cse6) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse32 .cse26 .cse4 .cse5 .cse30 .cse6) (and .cse7 .cse1 .cse27 .cse13 .cse19 .cse20) (and .cse7 .cse29 .cse9 .cse13 .cse33 .cse19 .cse20) (and (not .cse26) .cse7 .cse8 .cse29 .cse9 .cse13 .cse33) (and .cse1 .cse2 .cse3 .cse4 .cse13 .cse5 .cse20) (and .cse0 .cse7 .cse1 .cse27 .cse19 .cse20) (and .cse32 .cse26 .cse8 .cse12 .cse4 .cse6) (not (<= |old(~a20~0)| 1)) (and .cse29 .cse15 .cse9 .cse13 .cse5 .cse17 .cse10 (<= ~a20~0 ~a21~0)) (and .cse0 .cse7 .cse1 .cse9 .cse5 .cse20) (and .cse0 .cse7 .cse1 .cse9 .cse19 .cse20) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse26 .cse7 .cse27 .cse5 .cse30 .cse20) (and .cse1 .cse2 .cse4 .cse13 .cse5 .cse6) (and .cse7 .cse27 .cse13 .cse5 .cse31 .cse6) (and .cse7 .cse8 .cse29 .cse9 .cse10 .cse20) (and .cse1 .cse2 .cse4 (= ~a21~0 0) .cse13 .cse19 .cse6)))) [2020-10-13 06:02:36,230 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:02:36,230 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:02:36,231 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (= ~a21~0 1)) (.cse0 (= ~a7~0 1)) (.cse21 (= ~a20~0 ~a7~0)) (.cse2 (= ~a20~0 1))) (let ((.cse12 (<= ~a16~0 4)) (.cse14 (<= 4 ~a16~0)) (.cse13 (<= ~a17~0 0)) (.cse25 (not .cse2)) (.cse22 (not .cse21)) (.cse3 (= 5 ~a16~0)) (.cse10 (<= ~a7~0 0)) (.cse6 (= ~a16~0 6)) (.cse8 (not .cse0)) (.cse17 (<= ~a20~0 0)) (.cse15 (<= ~a21~0 1)) (.cse16 (<= 1 ~a21~0)) (.cse18 (= ~a20~0 0)) (.cse7 (= ~a8~0 15)) (.cse26 (not .cse5)) (.cse1 (= ~a8~0 13)) (.cse19 (= ~a20~0 ~a17~0)) (.cse23 (= ~a17~0 ~a7~0)) (.cse9 (= ~a17~0 0)) (.cse20 (= 14 ~a8~0)) (.cse11 (= ~a16~0 4)) (.cse24 (= ~a7~0 0)) (.cse4 (= ~a17~0 1))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (not (<= 5 |old(~a16~0)|)) (and .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a21~0)| 1)) (and .cse5 .cse10 .cse1 .cse2 .cse11 .cse4) (and (<= 1 ~a7~0) (<= 14 ~a8~0) (<= ~a8~0 14) .cse12 .cse13 .cse14 .cse15 .cse16 (<= ~a7~0 1) .cse17) (not (<= 1 |old(~a17~0)|)) (and .cse18 .cse5 .cse7 .cse3 .cse9) (not (<= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2 .cse11 .cse4) (and (<= 13 ~a8~0) .cse12 (or (< 1 ~a20~0) .cse17) .cse14 (or (< 1 ~a7~0) .cse10) .cse15 (or .cse13 (< 1 ~a17~0)) .cse16 (<= ~a8~0 13)) (not (<= 1 |old(~a20~0)|)) (not (<= 1 |old(~a21~0)|)) (and .cse19 .cse5 .cse20 .cse3 .cse21 .cse9) (and .cse5 .cse7 .cse2 .cse22 .cse3 .cse9) (and .cse13 .cse7 .cse2 .cse11 .cse15 .cse8 (<= ~a20~0 ~a21~0)) (and .cse5 .cse1 .cse11 .cse23 .cse24) (and .cse7 .cse15 .cse16 .cse8 .cse3 .cse25) (not (= ~a12~0 8)) (and .cse18 .cse0 .cse26 .cse1 .cse11 .cse4) (and .cse5 .cse7 .cse11 .cse8 .cse25 .cse4) (and .cse5 .cse20 .cse2 .cse11 .cse23 .cse9) (not (<= |old(~a8~0)| 15)) (and (not .cse19) .cse5 .cse6 .cse7 .cse2 .cse22) (not (<= |old(~a7~0)| 0)) (and .cse5 .cse0 .cse20 .cse2 .cse3 .cse9) (and .cse0 .cse6 .cse26 .cse1 .cse2 .cse9) (and .cse18 .cse5 .cse0 .cse20 .cse3 .cse9) (and (= ~a21~0 ~a17~0) .cse19 .cse6 .cse10 .cse1 .cse4) (and .cse5 .cse6 .cse7 .cse8 .cse4 .cse17) (not (<= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) .cse15 .cse16 (<= ~a8~0 15) (<= 15 ~a8~0)) (and .cse18 .cse19 .cse5 .cse7 .cse11) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse26 .cse1 .cse2 .cse11 .cse9) (not (<= 15 |old(~a8~0)|)) (and .cse19 .cse5 .cse20 .cse11 .cse23 .cse9) (and .cse5 .cse20 .cse2 .cse11 .cse24 .cse4)))) [2020-10-13 06:02:36,231 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:02:36,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:02:36 BoogieIcfgContainer [2020-10-13 06:02:36,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:02:36,265 INFO L168 Benchmark]: Toolchain (without parser) took 142293.98 ms. Allocated memory was 139.5 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 101.0 MB in the beginning and 260.5 MB in the end (delta: -159.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:02:36,265 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:02:36,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.16 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 169.5 MB in the end (delta: -68.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:02:36,266 INFO L168 Benchmark]: Boogie Preprocessor took 97.01 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:02:36,267 INFO L168 Benchmark]: RCFGBuilder took 1167.71 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 164.4 MB in the beginning and 178.4 MB in the end (delta: -14.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:02:36,267 INFO L168 Benchmark]: TraceAbstraction took 140347.26 ms. Allocated memory was 236.5 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 178.4 MB in the beginning and 260.5 MB in the end (delta: -82.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:02:36,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.16 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 169.5 MB in the end (delta: -68.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.01 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1167.71 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 164.4 MB in the beginning and 178.4 MB in the end (delta: -14.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 140347.26 ms. Allocated memory was 236.5 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 178.4 MB in the beginning and 260.5 MB in the end (delta: -82.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 545]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1) || !(5 <= \old(a16))) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || !(\old(a21) <= 1)) || (((((a21 == 1 && a7 <= 0) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a7 <= 1) && a20 <= 0)) || !(1 <= \old(a17))) || ((((a20 == 0 && a21 == 1) && a8 == 15) && 5 == a16) && a17 == 0)) || !(\old(a17) <= 1)) || ((((a7 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || ((((((((13 <= a8 && a16 <= 4) && (1 < a20 || a20 <= 0)) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 13)) || !(1 <= \old(a20))) || !(1 <= \old(a21))) || (((((a20 == a17 && a21 == 1) && 14 == a8) && 5 == a16) && a20 == a7) && a17 == 0)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && !(a20 == a7)) && 5 == a16) && a17 == 0)) || ((((((a17 <= 0 && a8 == 15) && a20 == 1) && a16 == 4) && a21 <= 1) && !(a7 == 1)) && a20 <= a21)) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a7 == 0)) || (((((a8 == 15 && a21 <= 1) && 1 <= a21) && !(a7 == 1)) && 5 == a16) && !(a20 == 1))) || !(a12 == 8)) || (((((a20 == 0 && a7 == 1) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1)) || (((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && !(a20 == 1)) && a17 == 1)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a17 == a7) && a17 == 0)) || !(\old(a8) <= 15)) || (((((!(a20 == a17) && a21 == 1) && a16 == 6) && a8 == 15) && a20 == 1) && !(a20 == a7))) || !(\old(a7) <= 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || (((((a7 == 1 && a16 == 6) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || (((((a20 == 0 && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16) && a17 == 0)) || (((((a21 == a17 && a20 == a17) && a16 == 6) && a7 <= 0) && a8 == 13) && a17 == 1)) || (((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || !(\old(a20) <= 1)) || ((((((a7 == \old(a7) && a17 == \old(a17)) && a16 == \old(a16)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || ((((a20 == 0 && a20 == a17) && a21 == 1) && a8 == 15) && a16 == 4)) || !(\old(a16) <= 5)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || !(15 <= \old(a8))) || (((((a20 == a17 && a21 == 1) && 14 == a8) && a16 == 4) && a17 == a7) && a17 == 0)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 130.2s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 57.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 794 SDtfs, 9366 SDslu, 1184 SDs, 0 SdLazy, 22846 SolverSat, 1302 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 786 GetRequests, 352 SyntacticMatches, 23 SemanticMatches, 411 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 38.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=606occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 31 MinimizatonAttempts, 292 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 3688 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1104 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3965 FormulaSimplificationTreeSizeReductionInter, 9.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 64.7s InterpolantComputationTime, 8125 NumberOfCodeBlocks, 8125 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 8094 ConstructedInterpolants, 0 QuantifiedInterpolants, 20837008 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8178/8288 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...