/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/Problem02_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:09:52,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:09:52,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:09:52,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:09:52,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:09:52,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:09:52,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:09:52,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:09:52,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:09:52,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:09:52,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:09:52,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:09:52,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:09:52,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:09:52,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:09:52,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:09:52,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:09:52,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:09:52,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:09:52,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:09:52,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:09:52,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:09:52,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:09:52,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:09:52,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:09:52,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:09:52,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:09:52,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:09:52,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:09:52,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:09:52,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:09:52,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:09:52,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:09:52,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:09:52,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:09:52,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:09:52,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:09:52,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:09:52,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:09:52,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:09:52,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:09:52,575 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 06:09:52,613 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:09:52,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:09:52,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:09:52,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:09:52,615 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:09:52,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:09:52,616 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:09:52,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:09:52,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:09:52,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:09:52,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:09:52,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:09:52,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:09:52,619 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:09:52,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:09:52,619 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:09:52,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:09:52,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:09:52,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:09:52,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:09:52,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:09:52,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:09:52,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:09:52,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:09:52,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:09:52,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:09:52,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:09:52,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:09:52,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:09:52,622 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 06:09:52,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:09:52,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:09:52,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:09:52,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:09:52,943 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:09:52,944 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label17.c [2020-10-13 06:09:53,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bb1c0679/1a06fa9714c4490faf5df0266d2dfb9a/FLAG191cefd83 [2020-10-13 06:09:53,597 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:09:53,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label17.c [2020-10-13 06:09:53,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bb1c0679/1a06fa9714c4490faf5df0266d2dfb9a/FLAG191cefd83 [2020-10-13 06:09:53,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bb1c0679/1a06fa9714c4490faf5df0266d2dfb9a [2020-10-13 06:09:53,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:09:53,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:09:53,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:09:53,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:09:53,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:09:53,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:53" (1/1) ... [2020-10-13 06:09:53,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21af3704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:53, skipping insertion in model container [2020-10-13 06:09:53,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:53" (1/1) ... [2020-10-13 06:09:53,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:09:53,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:09:54,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:09:54,421 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:09:54,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:09:54,629 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:09:54,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54 WrapperNode [2020-10-13 06:09:54,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:09:54,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:09:54,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:09:54,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:09:54,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (1/1) ... [2020-10-13 06:09:54,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (1/1) ... [2020-10-13 06:09:54,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (1/1) ... [2020-10-13 06:09:54,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (1/1) ... [2020-10-13 06:09:54,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (1/1) ... [2020-10-13 06:09:54,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (1/1) ... [2020-10-13 06:09:54,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (1/1) ... [2020-10-13 06:09:54,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:09:54,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:09:54,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:09:54,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:09:54,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (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 06:09:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:09:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:09:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:09:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:09:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:09:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:09:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:09:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:09:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:09:55,995 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:09:55,996 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:09:56,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:56 BoogieIcfgContainer [2020-10-13 06:09:56,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:09:56,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:09:56,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:09:56,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:09:56,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:09:53" (1/3) ... [2020-10-13 06:09:56,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6869aa14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:56, skipping insertion in model container [2020-10-13 06:09:56,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:54" (2/3) ... [2020-10-13 06:09:56,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6869aa14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:56, skipping insertion in model container [2020-10-13 06:09:56,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:56" (3/3) ... [2020-10-13 06:09:56,017 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label17.c [2020-10-13 06:09:56,028 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:09:56,039 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:09:56,053 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:09:56,086 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:09:56,087 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:09:56,087 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:09:56,087 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:09:56,087 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:09:56,087 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:09:56,088 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:09:56,088 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:09:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:09:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 06:09:56,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:56,124 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] [2020-10-13 06:09:56,124 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:56,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:56,131 INFO L82 PathProgramCache]: Analyzing trace with hash -130625471, now seen corresponding path program 1 times [2020-10-13 06:09:56,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:56,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971178884] [2020-10-13 06:09:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:56,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:57,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:57,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 06:09:57,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:57,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1582 [2020-10-13 06:09:57,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:57,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:09:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:09:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:09:57,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:09:58,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:58,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:58,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:58,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:58,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:58,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:09:58,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:58,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:58,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:09:58,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:58,612 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 06:09:58,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971178884] [2020-10-13 06:09:58,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:09:58,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 06:09:58,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948408542] [2020-10-13 06:09:58,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 06:09:58,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:58,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 06:09:58,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:09:58,645 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-13 06:09:59,393 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:09:59,670 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-13 06:10:00,197 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 06:10:00,633 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-13 06:10:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:01,663 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:10:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:10:01,665 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 125 [2020-10-13 06:10:01,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:01,680 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:10:01,681 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:10:01,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:10:01,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:10:01,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:10:01,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:10:01,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:10:01,756 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 125 [2020-10-13 06:10:01,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:01,757 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:10:01,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 06:10:01,757 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:10:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 06:10:01,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:01,763 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:10:01,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:10:01,763 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:01,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:01,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1439670512, now seen corresponding path program 1 times [2020-10-13 06:10:01,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:01,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543675380] [2020-10-13 06:10:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:01,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:01,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:03,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:03,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-13 06:10:03,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:03,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1242 [2020-10-13 06:10:03,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:03,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:03,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:10:03,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:10:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:03,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:03,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:03,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:03,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:03,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:10:03,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:03,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:03,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:03,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:10:03,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:03,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:10:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:04,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:04,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543675380] [2020-10-13 06:10:04,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:04,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:04,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308391170] [2020-10-13 06:10:04,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:04,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:04,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:04,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:04,123 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:10:04,421 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:10:06,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:06,344 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:10:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:10:06,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 134 [2020-10-13 06:10:06,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:06,352 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:10:06,352 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:10:06,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:10:06,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:10:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:10:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:10:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:10:06,392 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 134 [2020-10-13 06:10:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:06,393 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:10:06,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:06,396 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:10:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-13 06:10:06,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:06,402 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:06,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:10:06,404 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:06,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:06,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1738531464, now seen corresponding path program 1 times [2020-10-13 06:10:06,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:06,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349095659] [2020-10-13 06:10:06,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:06,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:06,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:07,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:07,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-13 06:10:07,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:07,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1434 [2020-10-13 06:10:07,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:07,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:07,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:10:07,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:10:07,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:08,409 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-10-13 06:10:08,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:08,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:08,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:08,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:08,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:08,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:08,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:08,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:08,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:08,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:08,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:08,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:08,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:10:08,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:10:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:09,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349095659] [2020-10-13 06:10:09,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:09,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:09,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992627672] [2020-10-13 06:10:09,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:09,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:09,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:09,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:09,023 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:10:09,352 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:10:10,080 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:10:11,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:11,044 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:10:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:10:11,045 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 138 [2020-10-13 06:10:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:11,054 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:10:11,054 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:10:11,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:10:11,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:10:11,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:10:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:10:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:10:11,096 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 138 [2020-10-13 06:10:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:11,097 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:10:11,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:10:11,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 06:10:11,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:11,108 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:11,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:10:11,108 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:11,109 INFO L82 PathProgramCache]: Analyzing trace with hash -189213152, now seen corresponding path program 1 times [2020-10-13 06:10:11,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:11,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839338505] [2020-10-13 06:10:11,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 06:10:11,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-13 06:10:11,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:10:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:10:11,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:11,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:11,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:11,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:11,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:11,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:11,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:11,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:11,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:10:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:10:11,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:11,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:10:11,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:10:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:10:11,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839338505] [2020-10-13 06:10:11,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:11,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:11,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878045682] [2020-10-13 06:10:11,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:11,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:11,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:11,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:11,837 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:10:12,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:12,940 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:10:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:12,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-10-13 06:10:12,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:12,944 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:10:12,944 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:10:12,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:12,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:10:12,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:10:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:10:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:10:12,963 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 160 [2020-10-13 06:10:12,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:12,963 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:10:12,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:12,964 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:10:12,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-13 06:10:12,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:12,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:12,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:10:12,988 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:12,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash 154084801, now seen corresponding path program 1 times [2020-10-13 06:10:12,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:12,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233793502] [2020-10-13 06:10:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:13,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:13,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:13,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 06:10:14,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:14,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1405 [2020-10-13 06:10:14,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:10:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:10:14,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:15,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:15,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:15,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:15,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:15,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:15,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:15,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:15,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:15,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:15,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:10:15,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:15,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:10:15,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:10:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:15,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233793502] [2020-10-13 06:10:15,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:15,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:15,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877999150] [2020-10-13 06:10:15,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:15,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:15,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:15,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:15,491 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:10:15,837 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:10:15,960 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 06:10:17,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:17,184 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:10:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:10:17,185 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2020-10-13 06:10:17,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:17,188 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:10:17,189 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:10:17,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:10:17,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:10:17,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:10:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:10:17,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:10:17,205 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 159 [2020-10-13 06:10:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:17,206 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:10:17,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:10:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-13 06:10:17,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:17,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:17,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:10:17,209 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:17,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:17,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1696733562, now seen corresponding path program 1 times [2020-10-13 06:10:17,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:17,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654191512] [2020-10-13 06:10:17,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:17,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:17,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:18,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:18,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 06:10:18,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:18,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1342 [2020-10-13 06:10:18,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:18,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:18,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:10:18,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:10:18,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:18,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:18,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:18,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:18,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:18,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:10:18,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:18,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:18,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:18,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:18,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:18,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:10:18,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:18,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:18,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:10:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:18,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:18,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:18,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:10:18,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:10:18,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:10:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:10:19,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654191512] [2020-10-13 06:10:19,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:19,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:19,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701496727] [2020-10-13 06:10:19,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:19,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:19,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:19,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:19,051 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:10:20,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:20,255 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:10:20,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:20,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-13 06:10:20,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:20,259 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:10:20,259 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:10:20,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:20,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:10:20,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:10:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:10:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:10:20,278 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 167 [2020-10-13 06:10:20,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:20,278 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:10:20,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:10:20,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 06:10:20,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:20,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:20,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:10:20,284 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:20,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:20,284 INFO L82 PathProgramCache]: Analyzing trace with hash 576272939, now seen corresponding path program 1 times [2020-10-13 06:10:20,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:20,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382329143] [2020-10-13 06:10:20,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:20,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:20,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:20,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:21,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:21,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-13 06:10:21,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1416 [2020-10-13 06:10:21,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:10:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:10:21,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:22,205 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:10:22,351 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-10-13 06:10:22,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:22,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:22,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:22,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:22,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:22,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:22,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:22,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:22,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:22,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:10:22,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:10:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:23,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382329143] [2020-10-13 06:10:23,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:23,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:23,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839382105] [2020-10-13 06:10:23,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:23,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:23,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:23,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:23,036 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:10:23,507 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:10:24,152 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:10:24,308 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:10:25,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:25,764 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:10:25,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:10:25,766 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2020-10-13 06:10:25,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:25,769 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:10:25,770 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:10:25,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:10:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:10:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:10:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:10:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:10:25,793 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 176 [2020-10-13 06:10:25,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:25,795 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:10:25,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:25,795 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:10:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 06:10:25,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:25,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:25,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:10:25,798 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:25,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:25,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1032229097, now seen corresponding path program 1 times [2020-10-13 06:10:25,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:25,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700012760] [2020-10-13 06:10:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:25,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:25,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:27,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:27,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 06:10:27,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:27,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1261 [2020-10-13 06:10:27,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:10:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:10:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:27,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:27,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:27,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:27,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:27,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:27,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:27,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:27,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:27,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:27,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:10:27,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:27,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:10:27,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:27,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:10:27,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:27,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700012760] [2020-10-13 06:10:27,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:27,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:27,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529853828] [2020-10-13 06:10:27,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:27,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:27,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:27,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:27,588 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:10:28,427 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-13 06:10:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:29,438 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:10:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:10:29,439 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2020-10-13 06:10:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:29,443 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:10:29,443 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:10:29,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:10:29,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:10:29,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:10:29,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:10:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:10:29,462 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 182 [2020-10-13 06:10:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:29,463 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:10:29,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:10:29,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-13 06:10:29,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:29,467 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:29,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:10:29,467 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:29,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1793411341, now seen corresponding path program 1 times [2020-10-13 06:10:29,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:29,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213716724] [2020-10-13 06:10:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:29,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:29,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:29,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:29,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:31,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-13 06:10:31,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:31,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1538 [2020-10-13 06:10:31,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:10:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:10:31,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:31,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:31,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:31,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:31,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:31,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:10:31,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:31,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:31,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:31,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:31,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:31,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:31,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:31,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:31,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:31,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:31,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:31,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:31,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:31,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:10:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:31,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:31,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:10:31,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:31,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:10:31,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:31,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:31,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:10:31,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:10:31,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213716724] [2020-10-13 06:10:31,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:31,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:31,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084037759] [2020-10-13 06:10:31,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:31,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:31,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:31,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:31,401 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:10:32,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:32,789 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:10:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:32,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2020-10-13 06:10:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:32,795 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:10:32,795 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:10:32,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 06:10:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:10:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:10:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:10:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:10:32,819 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 207 [2020-10-13 06:10:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:32,820 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:10:32,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:10:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-13 06:10:32,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:32,825 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, 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 06:10:32,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:10:32,825 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:32,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1444445659, now seen corresponding path program 1 times [2020-10-13 06:10:32,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:32,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641283520] [2020-10-13 06:10:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:32,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:32,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:33,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:35,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:35,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-13 06:10:35,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2976 [2020-10-13 06:10:35,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:10:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:10:35,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:36,302 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-10-13 06:10:36,431 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-13 06:10:36,578 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 43 [2020-10-13 06:10:36,735 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2020-10-13 06:10:36,898 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 35 [2020-10-13 06:10:37,041 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 30 [2020-10-13 06:10:37,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:37,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:37,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:37,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:37,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:37,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:37,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:37,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:37,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:37,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:37,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:10:37,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:37,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:37,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:10:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:37,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:37,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:10:37,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:10:37,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641283520] [2020-10-13 06:10:37,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:37,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:37,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334380645] [2020-10-13 06:10:37,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:37,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:37,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:37,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:37,498 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-13 06:10:38,139 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:10:38,520 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2020-10-13 06:10:38,843 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2020-10-13 06:10:39,339 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2020-10-13 06:10:39,638 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2020-10-13 06:10:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:40,473 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-13 06:10:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:10:40,473 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 218 [2020-10-13 06:10:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:40,478 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 06:10:40,478 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:10:40,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:10:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:10:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-13 06:10:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:10:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-13 06:10:40,497 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 218 [2020-10-13 06:10:40,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:40,497 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-13 06:10:40,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-13 06:10:40,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-13 06:10:40,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:40,501 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:10:40,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:10:40,502 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:40,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:40,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1803382313, now seen corresponding path program 1 times [2020-10-13 06:10:40,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:40,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634080966] [2020-10-13 06:10:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:40,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:40,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:41,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:41,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-13 06:10:41,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-13 06:10:41,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:10:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:10:41,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:41,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:41,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:41,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:41,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:41,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:41,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:41,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:41,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:41,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:41,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:41,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:41,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:41,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:10:41,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:41,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:41,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:10:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:41,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:41,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:41,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:10:41,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 06:10:41,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:10:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:41,570 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:10:41,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634080966] [2020-10-13 06:10:41,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:41,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:41,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894192657] [2020-10-13 06:10:41,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:41,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:41,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:41,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:41,572 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 5 states. [2020-10-13 06:10:42,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:42,548 INFO L93 Difference]: Finished difference Result 1157 states and 1378 transitions. [2020-10-13 06:10:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:42,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 231 [2020-10-13 06:10:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:42,552 INFO L225 Difference]: With dead ends: 1157 [2020-10-13 06:10:42,552 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:10:42,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:42,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:10:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:10:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:10:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 531 transitions. [2020-10-13 06:10:42,568 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 531 transitions. Word has length 231 [2020-10-13 06:10:42,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:42,569 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 531 transitions. [2020-10-13 06:10:42,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 531 transitions. [2020-10-13 06:10:42,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-13 06:10:42,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:42,571 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:10:42,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:10:42,572 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:42,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:42,572 INFO L82 PathProgramCache]: Analyzing trace with hash -386649610, now seen corresponding path program 1 times [2020-10-13 06:10:42,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:42,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27888667] [2020-10-13 06:10:42,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:42,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:42,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:42,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:42,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:44,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:44,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:44,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:45,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:47,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:47,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-13 06:10:47,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:10:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4434 [2020-10-13 06:10:47,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:10:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:10:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:10:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:47,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:47,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:47,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:47,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:47,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:47,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:47,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:47,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:47,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:10:47,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:47,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:47,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:47,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:47,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:47,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:10:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:47,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:47,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:47,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:10:47,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:10:47,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:47,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:10:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:47,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:47,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:10:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:47,610 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:10:47,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27888667] [2020-10-13 06:10:47,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:47,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:10:47,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877934004] [2020-10-13 06:10:47,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:10:47,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:47,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:10:47,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:10:47,612 INFO L87 Difference]: Start difference. First operand 458 states and 531 transitions. Second operand 13 states. [2020-10-13 06:10:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:50,262 INFO L93 Difference]: Finished difference Result 1152 states and 1420 transitions. [2020-10-13 06:10:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:10:50,263 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 238 [2020-10-13 06:10:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:50,266 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:10:50,266 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:10:50,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:10:50,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:10:50,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2020-10-13 06:10:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:10:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 542 transitions. [2020-10-13 06:10:50,282 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 542 transitions. Word has length 238 [2020-10-13 06:10:50,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:50,282 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 542 transitions. [2020-10-13 06:10:50,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:10:50,282 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 542 transitions. [2020-10-13 06:10:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-13 06:10:50,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:50,285 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, 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] [2020-10-13 06:10:50,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:10:50,285 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:50,285 INFO L82 PathProgramCache]: Analyzing trace with hash 973899569, now seen corresponding path program 1 times [2020-10-13 06:10:50,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:50,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389352438] [2020-10-13 06:10:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:50,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1355 [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:10:51,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:51,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:51,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:51,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:51,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:52,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:52,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:52,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:52,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:10:52,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:52,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:52,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:52,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:52,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:52,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:52,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:10:52,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:52,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:10:52,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:52,160 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:10:52,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389352438] [2020-10-13 06:10:52,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:52,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:52,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581752651] [2020-10-13 06:10:52,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:52,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:52,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:52,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:52,162 INFO L87 Difference]: Start difference. First operand 461 states and 542 transitions. Second operand 12 states. [2020-10-13 06:10:52,998 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-10-13 06:10:53,217 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-13 06:10:53,438 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:10:53,632 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-13 06:10:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:54,191 INFO L93 Difference]: Finished difference Result 954 states and 1141 transitions. [2020-10-13 06:10:54,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:10:54,191 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 253 [2020-10-13 06:10:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:54,194 INFO L225 Difference]: With dead ends: 954 [2020-10-13 06:10:54,194 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:10:54,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:10:54,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:10:54,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:10:54,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:10:54,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 584 transitions. [2020-10-13 06:10:54,215 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 584 transitions. Word has length 253 [2020-10-13 06:10:54,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:54,216 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 584 transitions. [2020-10-13 06:10:54,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 584 transitions. [2020-10-13 06:10:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-13 06:10:54,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:54,219 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:10:54,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:10:54,219 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:54,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:54,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1005081794, now seen corresponding path program 1 times [2020-10-13 06:10:54,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:54,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922271480] [2020-10-13 06:10:54,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:54,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:55,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:56,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-13 06:10:56,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:10:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2172 [2020-10-13 06:10:56,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:10:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:10:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:56,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:56,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:56,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:56,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:56,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:56,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:56,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:56,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:56,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:56,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:56,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:56,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:56,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:56,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:56,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:10:56,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:56,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:56,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:56,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:56,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:56,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:56,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:56,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:56,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:56,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:10:56,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:56,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:56,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:56,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:10:56,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:56,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:56,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:10:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:10:56,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922271480] [2020-10-13 06:10:56,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:56,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:56,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486130926] [2020-10-13 06:10:56,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:56,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:56,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:56,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:56,780 INFO L87 Difference]: Start difference. First operand 496 states and 584 transitions. Second operand 5 states. [2020-10-13 06:10:57,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:57,798 INFO L93 Difference]: Finished difference Result 1072 states and 1304 transitions. [2020-10-13 06:10:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:57,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-10-13 06:10:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:57,806 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:10:57,806 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:10:57,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 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 06:10:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:10:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:10:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:10:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 579 transitions. [2020-10-13 06:10:57,822 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 579 transitions. Word has length 267 [2020-10-13 06:10:57,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:57,822 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 579 transitions. [2020-10-13 06:10:57,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:57,823 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 579 transitions. [2020-10-13 06:10:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-13 06:10:57,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:57,825 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:10:57,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:10:57,826 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:57,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:57,826 INFO L82 PathProgramCache]: Analyzing trace with hash 13914646, now seen corresponding path program 1 times [2020-10-13 06:10:57,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:57,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214543281] [2020-10-13 06:10:57,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:57,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:57,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:58,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:58,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:01,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:02,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 06:11:02,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:11:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 06:11:02,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:11:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:11:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:11:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:03,337 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-10-13 06:11:03,464 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-10-13 06:11:03,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:03,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:03,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:03,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:03,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:03,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:03,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:03,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:03,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:03,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:03,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:03,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:03,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:03,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:03,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:03,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:03,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:03,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:03,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:11:03,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:03,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:03,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:03,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:03,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:11:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:11:04,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214543281] [2020-10-13 06:11:04,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:04,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:11:04,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411782398] [2020-10-13 06:11:04,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:11:04,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:04,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:11:04,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:11:04,057 INFO L87 Difference]: Start difference. First operand 496 states and 579 transitions. Second operand 13 states. [2020-10-13 06:11:04,721 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:11:05,039 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-13 06:11:05,342 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-13 06:11:05,812 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2020-10-13 06:11:06,270 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-13 06:11:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:07,123 INFO L93 Difference]: Finished difference Result 1366 states and 1675 transitions. [2020-10-13 06:11:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:11:07,123 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 274 [2020-10-13 06:11:07,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:07,127 INFO L225 Difference]: With dead ends: 1366 [2020-10-13 06:11:07,128 INFO L226 Difference]: Without dead ends: 875 [2020-10-13 06:11:07,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:11:07,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-13 06:11:07,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2020-10-13 06:11:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:11:07,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1000 transitions. [2020-10-13 06:11:07,153 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1000 transitions. Word has length 274 [2020-10-13 06:11:07,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:07,154 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1000 transitions. [2020-10-13 06:11:07,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:11:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1000 transitions. [2020-10-13 06:11:07,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-13 06:11:07,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:07,158 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:07,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:11:07,158 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:07,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:07,159 INFO L82 PathProgramCache]: Analyzing trace with hash 23912353, now seen corresponding path program 1 times [2020-10-13 06:11:07,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:07,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703184729] [2020-10-13 06:11:07,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:07,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:07,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-13 06:11:07,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:07,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-13 06:11:07,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:07,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:07,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:11:07,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:11:07,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:07,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:07,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:07,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:07,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:07,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:07,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:07,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:07,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:07,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:07,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:07,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:07,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:11:07,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:07,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:07,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:07,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:07,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:11:07,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:07,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:07,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:07,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:11:07,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:07,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:11:07,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:07,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:11:07,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:08,005 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:11:08,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703184729] [2020-10-13 06:11:08,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:08,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:08,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36221699] [2020-10-13 06:11:08,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:08,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:08,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:08,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:08,007 INFO L87 Difference]: Start difference. First operand 867 states and 1000 transitions. Second operand 5 states. [2020-10-13 06:11:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:08,972 INFO L93 Difference]: Finished difference Result 1819 states and 2146 transitions. [2020-10-13 06:11:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:08,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2020-10-13 06:11:08,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:08,981 INFO L225 Difference]: With dead ends: 1819 [2020-10-13 06:11:08,982 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:11:08,984 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 06:11:08,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:11:09,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:11:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:11:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 985 transitions. [2020-10-13 06:11:09,005 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 985 transitions. Word has length 279 [2020-10-13 06:11:09,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:09,006 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 985 transitions. [2020-10-13 06:11:09,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 985 transitions. [2020-10-13 06:11:09,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-13 06:11:09,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:09,010 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:09,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:11:09,010 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:09,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:09,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1719499539, now seen corresponding path program 1 times [2020-10-13 06:11:09,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:09,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287770131] [2020-10-13 06:11:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:09,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:12,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:12,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 06:11:12,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:11:12,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3185 [2020-10-13 06:11:12,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:11:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:11:12,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:12,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:12,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:12,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:12,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:12,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:12,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:12,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:12,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:12,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:12,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:12,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:12,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:12,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:12,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:12,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:12,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:12,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:12,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:11:12,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:12,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:12,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:12,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:12,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:12,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:11:12,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:12,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:11:12,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:12,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:12,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:11:12,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:11:13,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287770131] [2020-10-13 06:11:13,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:13,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:13,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200881972] [2020-10-13 06:11:13,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:13,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:13,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:13,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:13,100 INFO L87 Difference]: Start difference. First operand 867 states and 985 transitions. Second operand 5 states. [2020-10-13 06:11:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:14,123 INFO L93 Difference]: Finished difference Result 1817 states and 2108 transitions. [2020-10-13 06:11:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:14,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 284 [2020-10-13 06:11:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:14,129 INFO L225 Difference]: With dead ends: 1817 [2020-10-13 06:11:14,129 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:11:14,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:11:14,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:11:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:11:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 972 transitions. [2020-10-13 06:11:14,153 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 972 transitions. Word has length 284 [2020-10-13 06:11:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:14,153 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 972 transitions. [2020-10-13 06:11:14,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 972 transitions. [2020-10-13 06:11:14,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-13 06:11:14,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:14,157 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:14,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:11:14,157 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:14,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:14,158 INFO L82 PathProgramCache]: Analyzing trace with hash -2083867524, now seen corresponding path program 1 times [2020-10-13 06:11:14,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:14,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505774703] [2020-10-13 06:11:14,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:16,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:16,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:17,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:17,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:17,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:19,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:19,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-13 06:11:19,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:11:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4828 [2020-10-13 06:11:19,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:11:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:11:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:19,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:19,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:19,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:19,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:19,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:19,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:19,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:19,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:19,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:19,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:19,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:19,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:19,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:11:19,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:19,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:19,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:19,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:19,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:19,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:19,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:19,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:19,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:19,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:19,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:19,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:19,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:19,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:19,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:19,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:11:19,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:19,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:11:19,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:11:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:19,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:11:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:19,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:19,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:19,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:11:19,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:19,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 06:11:19,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:11:19,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:11:19,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:11:19,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505774703] [2020-10-13 06:11:19,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:19,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:11:19,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692050125] [2020-10-13 06:11:19,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:11:19,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:19,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:11:19,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:11:19,521 INFO L87 Difference]: Start difference. First operand 867 states and 972 transitions. Second operand 8 states. [2020-10-13 06:11:20,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:20,511 INFO L93 Difference]: Finished difference Result 1257 states and 1388 transitions. [2020-10-13 06:11:20,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:11:20,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 339 [2020-10-13 06:11:20,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:20,512 INFO L225 Difference]: With dead ends: 1257 [2020-10-13 06:11:20,513 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:11:20,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:11:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:11:20,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:11:20,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:11:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:11:20,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 339 [2020-10-13 06:11:20,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:20,517 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:11:20,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:11:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:11:20,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:11:20,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:11:20,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:11:21,521 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 142 [2020-10-13 06:11:21,965 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 169 [2020-10-13 06:11:25,184 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 246 DAG size of output: 190 [2020-10-13 06:11:25,867 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 82 [2020-10-13 06:11:26,737 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 114 [2020-10-13 06:11:26,740 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:11:26,741 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:11:26,741 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:11:26,741 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,741 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,741 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,741 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,741 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,742 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:11:26,742 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:11:26,742 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:11:26,742 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:11:26,742 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:11:26,743 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:11:26,744 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:11:26,745 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,746 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 529) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:11:26,747 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,748 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:11:26,749 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,750 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:11:26,751 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:11:26,752 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:11:26,753 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:11:26,754 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,755 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:11:26,756 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,757 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:11:26,758 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,759 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,760 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse2 (= |old(~a25~0)| 1)) (.cse39 (= |old(~a19~0)| 1)) (.cse4 (= |old(~a11~0)| 1)) (.cse8 (= 7 ~a28~0)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse7 (= ~a17~0 8)) (.cse45 (= ~a28~0 9)) (.cse29 (= ~a19~0 |old(~a19~0)|))) (let ((.cse16 (not (<= |old(~a25~0)| 1))) (.cse17 (not (<= |old(~a19~0)| 1))) (.cse18 (not (<= |old(~a17~0)| 8))) (.cse19 (not (<= |old(~a11~0)| 1))) (.cse31 (not (<= |old(~a28~0)| 10))) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse21 (not (<= 1 |old(~a19~0)|))) (.cse24 (= ~a17~0 |old(~a17~0)|)) (.cse25 (<= 1 ~a11~0)) (.cse26 (<= 1 ~a25~0)) (.cse27 (<= ~a11~0 1)) (.cse28 (<= ~a25~0 1)) (.cse34 (<= ~a28~0 10)) (.cse22 (not (<= 1 |old(~a11~0)|))) (.cse23 (not (<= 1 |old(~a25~0)|))) (.cse14 (and .cse5 .cse6 .cse7 .cse45 .cse29)) (.cse32 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (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|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse41 (not (= 10 |old(~a28~0)|))) (.cse36 (not (= |old(~a19~0)| |old(~a25~0)|))) (.cse42 (= ~a28~0 10)) (.cse40 (and .cse5 .cse6 .cse7 .cse8 .cse29)) (.cse12 (not (= 0 |old(~a25~0)|))) (.cse10 (not (= 7 |old(~a28~0)|))) (.cse38 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse35 (not (= 7 |old(~a17~0)|))) (.cse37 (= 7 ~a17~0)) (.cse1 (not (= 0 |old(~a19~0)|))) (.cse13 (not (= 9 |old(~a28~0)|))) (.cse15 (not .cse4)) (.cse0 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse43 (= ~a28~0 8)) (.cse11 (not .cse39)) (.cse44 (not (= 8 |old(~a28~0)|))) (.cse30 (not .cse2)) (.cse33 (= ~a25~0 1)) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse9 (not (= ~a21~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~a19~0 0) .cse5 .cse6 .cse7 .cse8) .cse9 .cse10) (or .cse11 .cse3 .cse12 .cse13 .cse9 .cse14 .cse15) (or .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 (not (<= |old(~a28~0)| 9)) .cse9 .cse22 .cse23 (and .cse24 .cse25 (<= 9 ~a28~0) .cse26 .cse27 (<= ~a28~0 9) .cse28 .cse29) (not (<= 9 |old(~a28~0)|))) (or .cse30 .cse18 .cse31 .cse9 .cse32 (not (< 7 |old(~a17~0)|)) (and (not (<= 2 |old(~a11~0)|)) (not (<= |old(~a11~0)| 0))) (not (<= |old(~a19~0)| 0)) (and .cse5 (< 9 ~a28~0) .cse7 .cse33 .cse34 .cse29) (not (< 9 |old(~a28~0)|))) (or .cse30 .cse35 (not (= |old(~a17~0)| |old(~a28~0)|)) .cse36 .cse9 (and .cse37 .cse5 .cse33 .cse29 (= ~a28~0 ~a17~0)) .cse38) (or .cse16 .cse17 .cse18 .cse19 .cse31 .cse20 .cse21 (and .cse24 .cse25 (<= 10 ~a28~0) .cse26 .cse27 .cse28 .cse34 .cse29) (not (<= 10 |old(~a28~0)|)) .cse9 .cse22 .cse23) (or .cse30 (not (= 11 |old(~a28~0)|)) .cse36 .cse3 .cse4 .cse9 .cse32 (and .cse5 .cse7 .cse33 .cse29 (= ~a28~0 11))) (or .cse11 .cse3 .cse4 .cse13 .cse9 .cse32 .cse14) (or .cse39 .cse40 .cse3 .cse12 .cse9 .cse10 .cse15) (or .cse0 .cse41 .cse11 .cse3 .cse4 .cse9 (and .cse5 .cse6 .cse7 .cse29 .cse42)) (or (and .cse5 .cse6 .cse7 .cse43 .cse29) .cse39 .cse3 .cse12 .cse4 .cse9 .cse32 .cse44) (or .cse41 .cse35 .cse36 .cse12 .cse9 (and .cse37 .cse5 (= ~a25~0 ~a19~0) .cse29 .cse42) .cse15) (or .cse0 .cse11 .cse40 .cse3 .cse12 .cse9 .cse10 .cse38) (or .cse30 .cse35 (and .cse37 .cse5 .cse33 .cse45 .cse29) .cse1 .cse13 .cse9 .cse15) (or .cse0 .cse30 (and .cse5 .cse7 .cse33 .cse43 .cse29) .cse11 .cse3 .cse4 .cse9 .cse44) (or (not (<= |old(~a28~0)| 7)) .cse30 (not (<= |old(~a25~0)| |old(~a19~0)|)) (and (= ~a28~0 |old(~a28~0)|) .cse5 .cse7 .cse33 .cse29) (not (<= |old(~a19~0)| |old(~a25~0)|)) .cse3 .cse4 .cse9)))) [2020-10-13 06:11:26,760 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,760 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,760 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:11:26,761 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,762 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:11:26,763 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,764 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:11:26,765 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:11:26,766 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:11:26,767 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:11:26,767 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:11:26,767 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:11:26,767 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0)) [2020-10-13 06:11:26,767 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:11:26,767 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:11:26,767 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-13 06:11:26,768 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= ~a11~0 1)) (.cse5 (= ~a19~0 1))) (let ((.cse3 (= ~a28~0 9)) (.cse9 (not .cse5)) (.cse0 (= ~a19~0 0)) (.cse10 (= ~a28~0 8)) (.cse8 (= ~a25~0 0)) (.cse14 (= ~a28~0 10)) (.cse1 (= 7 ~a17~0)) (.cse11 (= 7 ~a28~0)) (.cse15 (= ~a25~0 ~a19~0)) (.cse12 (<= 10 ~a28~0)) (.cse13 (<= ~a28~0 10)) (.cse6 (= ~a17~0 8)) (.cse2 (= ~a25~0 1)) (.cse7 (not .cse4)) (.cse16 (<= 1 ~a25~0)) (.cse17 (<= 8 ~a17~0)) (.cse18 (<= ~a19~0 1)) (.cse19 (<= ~a17~0 8)) (.cse20 (<= ~a25~0 1)) (.cse21 (<= 1 ~a19~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~a19~0)| 1)) (and .cse5 .cse6 .cse3 .cse7) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse5 .cse8 .cse6 .cse3) (and .cse8 .cse6 .cse9 .cse7 .cse10) (and .cse8 .cse6 .cse9 .cse11 .cse4) (and .cse0 .cse6 .cse11 .cse7 (not .cse2)) (and .cse5 .cse6 .cse2 .cse7 .cse10) (and (<= ~a19~0 0) .cse12 .cse6 .cse2 .cse7 .cse13) (and .cse5 .cse6 .cse7 .cse14) (and .cse1 .cse8 .cse4 .cse15 .cse14) (and (= ~a25~0 ~a11~0) .cse1 .cse2 .cse15 (= ~a28~0 ~a17~0)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse6 .cse11 (= ~a19~0 |old(~a19~0)|)) (and .cse6 .cse2 .cse7 .cse15 (= ~a28~0 11)) (not (= ~a21~0 1)) (and .cse12 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse13) (not (= 7 |old(~a28~0)|)) (and (<= ~a25~0 ~a19~0) .cse6 .cse2 .cse7 (<= ~a19~0 ~a25~0) (<= ~a28~0 7)) (and (<= 9 ~a28~0) .cse16 .cse17 .cse18 (<= ~a28~0 9) .cse19 .cse20 .cse21) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:11:26,768 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:11:26,768 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:11:26,768 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse9 (= ~a11~0 1)) (.cse1 (= ~a19~0 1))) (let ((.cse5 (= ~a28~0 8)) (.cse19 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (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)))) (.cse20 (not .cse1)) (.cse18 (= ~a25~0 0)) (.cse10 (<= 1 ~a11~0)) (.cse21 (<= 10 ~a28~0)) (.cse11 (<= 1 ~a25~0)) (.cse12 (<= ~a11~0 1)) (.cse13 (<= 8 ~a17~0)) (.cse14 (<= ~a19~0 1)) (.cse15 (<= ~a17~0 8)) (.cse16 (<= ~a25~0 1)) (.cse17 (<= 1 ~a19~0)) (.cse22 (<= ~a28~0 10)) (.cse7 (= 7 ~a17~0)) (.cse23 (= ~a25~0 ~a19~0)) (.cse6 (= ~a19~0 0)) (.cse24 (= 7 ~a28~0)) (.cse25 (= ~a28~0 10)) (.cse3 (= ~a25~0 1)) (.cse0 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse2 (= ~a17~0 8)) (.cse8 (= ~a28~0 9)) (.cse4 (not .cse9))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse3 .cse8 .cse9) (not (= |old(~a19~0)| 1)) (and .cse10 (<= 9 ~a28~0) .cse11 .cse12 .cse13 .cse14 (<= ~a28~0 9) .cse15 .cse16 .cse17) (and .cse18 .cse2 .cse19 .cse20 .cse4 .cse5) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) (<= ~a19~0 0) .cse21 .cse2 .cse19 .cse3 .cse22) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse2 .cse19 .cse3 .cse4 .cse23 (= ~a28~0 11)) (and .cse18 .cse2 .cse20 .cse24 .cse9) (and .cse1 .cse18 .cse2 .cse8 .cse9) (and .cse0 (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse2 .cse24 (= ~a19~0 |old(~a19~0)|)) (and .cse7 .cse18 .cse9 .cse23 .cse25) (and .cse10 .cse21 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse22) (and (= ~a25~0 ~a11~0) .cse7 .cse3 .cse23 (= ~a28~0 ~a17~0)) (not (= ~a21~0 1)) (and .cse0 .cse6 .cse2 .cse24 .cse4 (not .cse3)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse1 .cse2 .cse4 .cse25) (and (<= ~a25~0 ~a19~0) .cse2 .cse3 .cse4 (<= ~a19~0 ~a25~0) (<= ~a28~0 7)) (and .cse0 .cse1 .cse2 .cse8 .cse4) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:11:26,769 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:11:26,769 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:11:26,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:11:26 BoogieIcfgContainer [2020-10-13 06:11:26,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:11:26,797 INFO L168 Benchmark]: Toolchain (without parser) took 92947.61 ms. Allocated memory was 148.4 MB in the beginning and 1.1 GB in the end (delta: 928.5 MB). Free memory was 103.1 MB in the beginning and 946.3 MB in the end (delta: -843.2 MB). Peak memory consumption was 942.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:26,798 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 06:11:26,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.13 ms. Allocated memory was 148.4 MB in the beginning and 206.6 MB in the end (delta: 58.2 MB). Free memory was 102.8 MB in the beginning and 173.3 MB in the end (delta: -70.5 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:26,799 INFO L168 Benchmark]: Boogie Preprocessor took 123.76 ms. Allocated memory is still 206.6 MB. Free memory was 173.3 MB in the beginning and 168.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:26,799 INFO L168 Benchmark]: RCFGBuilder took 1253.66 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 168.6 MB in the beginning and 177.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:26,800 INFO L168 Benchmark]: TraceAbstraction took 90785.85 ms. Allocated memory was 237.0 MB in the beginning and 1.1 GB in the end (delta: 839.9 MB). Free memory was 177.9 MB in the beginning and 946.3 MB in the end (delta: -768.4 MB). Peak memory consumption was 928.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:26,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.13 ms. Allocated memory was 148.4 MB in the beginning and 206.6 MB in the end (delta: 58.2 MB). Free memory was 102.8 MB in the beginning and 173.3 MB in the end (delta: -70.5 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.76 ms. Allocated memory is still 206.6 MB. Free memory was 173.3 MB in the beginning and 168.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1253.66 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 168.6 MB in the beginning and 177.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 90785.85 ms. Allocated memory was 237.0 MB in the beginning and 1.1 GB in the end (delta: 839.9 MB). Free memory was 177.9 MB in the beginning and 946.3 MB in the end (delta: -768.4 MB). Peak memory consumption was 928.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 529]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a19 == 0 && 7 == a17) && a25 == 1) && a28 == 9) && a11 == 1) || !(\old(a19) == 1)) || (((a19 == 1 && a17 == 8) && a28 == 9) && !(a11 == 1))) || !(8 == \old(a17))) || !(0 == \old(a25))) || (((a19 == 1 && a25 == 0) && a17 == 8) && a28 == 9)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1)) || ((((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1)) && !(a25 == 1))) || ((((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 8)) || (((((a19 <= 0 && 10 <= a28) && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 <= 10)) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || ((((7 == a17 && a25 == 0) && a11 == 1) && a25 == a19) && a28 == 10)) || ((((a25 == a11 && 7 == a17) && a25 == 1) && a25 == a19) && a28 == a17)) || ((((a11 == \old(a11) && a25 == \old(a25)) && a17 == 8) && 7 == a28) && a19 == \old(a19))) || ((((a17 == 8 && a25 == 1) && !(a11 == 1)) && a25 == a19) && a28 == 11)) || !(a21 == 1)) || (((((((10 <= a28 && 1 <= a25) && 8 <= a17) && a19 <= 1) && a17 <= 8) && a25 <= 1) && 1 <= a19) && a28 <= 10)) || !(7 == \old(a28))) || (((((a25 <= a19 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a19 <= a25) && a28 <= 7)) || (((((((9 <= a28 && 1 <= a25) && 8 <= a17) && a19 <= 1) && a28 <= 9) && a17 <= 8) && a25 <= 1) && 1 <= a19)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 84.4s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 33.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 682 SDtfs, 6973 SDslu, 973 SDs, 0 SdLazy, 14889 SolverSat, 1216 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 385 GetRequests, 153 SyntacticMatches, 11 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 124 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 145 NumberOfFragments, 1918 HoareAnnotationTreeSize, 108 FomulaSimplifications, 20709710 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1750 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 46.7s InterpolantComputationTime, 3831 NumberOfCodeBlocks, 3831 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3813 ConstructedInterpolants, 0 QuantifiedInterpolants, 9180386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 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...