/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:35:04,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:35:04,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:35:04,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:35:04,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:35:04,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:35:04,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:35:04,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:35:04,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:35:04,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:35:04,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:35:04,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:35:04,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:35:04,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:35:04,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:35:04,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:35:04,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:35:04,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:35:04,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:35:04,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:35:04,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:35:04,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:35:04,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:35:04,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:35:04,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:35:04,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:35:04,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:35:04,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:35:04,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:35:04,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:35:04,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:35:04,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:35:04,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:35:04,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:35:04,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:35:04,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:35:04,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:35:04,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:35:04,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:35:04,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:35:04,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:35:04,768 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 [2020-10-29 08:35:04,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:35:04,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:35:04,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:35:04,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:35:04,832 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:35:04,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:35:04,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:35:04,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:35:04,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:35:04,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:35:04,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:35:04,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:35:04,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:35:04,834 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:35:04,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:35:04,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:35:04,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:35:04,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:35:04,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:35:04,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:35:04,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:35:04,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:35:04,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:35:04,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:35:04,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:35:04,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:35:04,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:35:04,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:35:04,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:35:04,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:35:05,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:35:05,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:35:05,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:35:05,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:35:05,290 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:35:05,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label35.c [2020-10-29 08:35:05,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e30c0368f/f6080142c61443faa9ad4d5451502e88/FLAG057d51ad8 [2020-10-29 08:35:06,584 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:35:06,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label35.c [2020-10-29 08:35:06,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e30c0368f/f6080142c61443faa9ad4d5451502e88/FLAG057d51ad8 [2020-10-29 08:35:07,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e30c0368f/f6080142c61443faa9ad4d5451502e88 [2020-10-29 08:35:07,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:35:07,038 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:35:07,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:35:07,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:35:07,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:35:07,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:35:07" (1/1) ... [2020-10-29 08:35:07,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0c21eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:07, skipping insertion in model container [2020-10-29 08:35:07,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:35:07" (1/1) ... [2020-10-29 08:35:07,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:35:07,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:35:08,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:35:08,553 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:35:09,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:35:09,161 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:35:09,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09 WrapperNode [2020-10-29 08:35:09,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:35:09,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:35:09,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:35:09,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:35:09,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (1/1) ... [2020-10-29 08:35:09,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (1/1) ... [2020-10-29 08:35:09,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (1/1) ... [2020-10-29 08:35:09,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (1/1) ... [2020-10-29 08:35:09,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (1/1) ... [2020-10-29 08:35:09,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (1/1) ... [2020-10-29 08:35:09,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (1/1) ... [2020-10-29 08:35:09,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:35:09,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:35:09,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:35:09,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:35:09,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (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 [2020-10-29 08:35:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:35:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:35:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:35:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:35:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:35:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 08:35:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:35:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:35:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:35:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 08:35:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:35:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:35:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:35:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:35:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:35:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:35:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:35:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:35:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:35:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:35:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:35:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:35:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:35:14,581 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:35:14,581 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:35:14,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:35:14 BoogieIcfgContainer [2020-10-29 08:35:14,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:35:14,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:35:14,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:35:14,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:35:14,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:35:07" (1/3) ... [2020-10-29 08:35:14,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea764b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:35:14, skipping insertion in model container [2020-10-29 08:35:14,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:35:09" (2/3) ... [2020-10-29 08:35:14,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea764b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:35:14, skipping insertion in model container [2020-10-29 08:35:14,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:35:14" (3/3) ... [2020-10-29 08:35:14,602 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label35.c [2020-10-29 08:35:14,613 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:35:14,618 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:35:14,631 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:35:14,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:35:14,664 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:35:14,665 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:35:14,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:35:14,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:35:14,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:35:14,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:35:14,665 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:35:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-29 08:35:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 08:35:14,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:35:14,709 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] [2020-10-29 08:35:14,709 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:35:14,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:35:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1510701488, now seen corresponding path program 1 times [2020-10-29 08:35:14,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:35:14,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792588156] [2020-10-29 08:35:14,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:35:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:14,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:15,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:15,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 08:35:15,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:15,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-29 08:35:15,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:15,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:35:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:35:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:35:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:35:15,518 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:35:15,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:35:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:15,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:15,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:15,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:35:15,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:15,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:35:15,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:15,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:35:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:35:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:35:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:35:15,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792588156] [2020-10-29 08:35:15,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:35:15,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:35:15,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565680962] [2020-10-29 08:35:15,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:35:15,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:35:15,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:35:15,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:35:15,624 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-29 08:35:15,799 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 08:35:25,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:35:25,531 INFO L93 Difference]: Finished difference Result 2275 states and 4355 transitions. [2020-10-29 08:35:25,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:35:25,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-29 08:35:25,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:35:25,581 INFO L225 Difference]: With dead ends: 2275 [2020-10-29 08:35:25,582 INFO L226 Difference]: Without dead ends: 1433 [2020-10-29 08:35:25,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:35:25,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-29 08:35:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1426. [2020-10-29 08:35:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-29 08:35:25,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2230 transitions. [2020-10-29 08:35:25,790 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2230 transitions. Word has length 21 [2020-10-29 08:35:25,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:35:25,791 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 2230 transitions. [2020-10-29 08:35:25,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:35:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2230 transitions. [2020-10-29 08:35:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 08:35:25,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:35:25,801 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:35:25,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:35:25,802 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:35:25,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:35:25,804 INFO L82 PathProgramCache]: Analyzing trace with hash -741319159, now seen corresponding path program 1 times [2020-10-29 08:35:25,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:35:25,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392606837] [2020-10-29 08:35:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:35:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:25,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:26,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:26,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:26,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 08:35:26,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:35:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-10-29 08:35:26,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:26,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:35:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:35:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 08:35:26,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:35:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:35:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:26,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:26,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:26,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:35:26,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:26,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:35:26,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:26,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:35:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:35:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:35:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:35:27,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:35:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:27,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:27,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:27,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:35:27,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:27,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:35:27,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:27,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:27,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:35:27,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:35:27,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:35:27,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:35:27,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392606837] [2020-10-29 08:35:27,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:35:27,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:35:27,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170196793] [2020-10-29 08:35:27,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:35:27,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:35:27,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:35:27,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:35:27,249 INFO L87 Difference]: Start difference. First operand 1426 states and 2230 transitions. Second operand 7 states. [2020-10-29 08:35:38,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:35:38,791 INFO L93 Difference]: Finished difference Result 4354 states and 6840 transitions. [2020-10-29 08:35:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:35:38,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-29 08:35:38,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:35:38,813 INFO L225 Difference]: With dead ends: 4354 [2020-10-29 08:35:38,813 INFO L226 Difference]: Without dead ends: 2934 [2020-10-29 08:35:38,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:35:38,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2020-10-29 08:35:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2879. [2020-10-29 08:35:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2879 states. [2020-10-29 08:35:38,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 3877 transitions. [2020-10-29 08:35:38,913 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 3877 transitions. Word has length 91 [2020-10-29 08:35:38,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:35:38,914 INFO L481 AbstractCegarLoop]: Abstraction has 2879 states and 3877 transitions. [2020-10-29 08:35:38,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:35:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 3877 transitions. [2020-10-29 08:35:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 08:35:38,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:35:38,917 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:35:38,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:35:38,918 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:35:38,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:35:38,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1467700431, now seen corresponding path program 1 times [2020-10-29 08:35:38,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:35:38,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397637344] [2020-10-29 08:35:38,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:35:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:38,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:39,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:39,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:39,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:35:39,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:35:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 837 [2020-10-29 08:35:39,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:39,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:35:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:35:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 08:35:39,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:39,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:35:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:39,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:39,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:39,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:35:39,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:39,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:35:39,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:39,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:39,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:35:39,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:35:39,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:35:39,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:35:39,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:35:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:40,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:40,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:40,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:35:40,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 08:35:40,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:40,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:35:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:35:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:35:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:35:40,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397637344] [2020-10-29 08:35:40,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:35:40,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:35:40,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030183088] [2020-10-29 08:35:40,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:35:40,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:35:40,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:35:40,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:35:40,264 INFO L87 Difference]: Start difference. First operand 2879 states and 3877 transitions. Second operand 7 states. [2020-10-29 08:35:52,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:35:52,491 INFO L93 Difference]: Finished difference Result 8802 states and 12016 transitions. [2020-10-29 08:35:52,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:35:52,492 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2020-10-29 08:35:52,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:35:52,526 INFO L225 Difference]: With dead ends: 8802 [2020-10-29 08:35:52,526 INFO L226 Difference]: Without dead ends: 5929 [2020-10-29 08:35:52,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:35:52,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5929 states. [2020-10-29 08:35:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5842. [2020-10-29 08:35:52,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5842 states. [2020-10-29 08:35:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 7282 transitions. [2020-10-29 08:35:52,696 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 7282 transitions. Word has length 111 [2020-10-29 08:35:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:35:52,696 INFO L481 AbstractCegarLoop]: Abstraction has 5842 states and 7282 transitions. [2020-10-29 08:35:52,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:35:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 7282 transitions. [2020-10-29 08:35:52,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-29 08:35:52,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:35:52,702 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:35:52,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:35:52,703 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:35:52,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:35:52,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1857973832, now seen corresponding path program 1 times [2020-10-29 08:35:52,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:35:52,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127886745] [2020-10-29 08:35:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:35:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:52,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:52,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:53,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:56,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:56,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-29 08:35:56,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:35:56,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3341 [2020-10-29 08:35:56,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:56,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:35:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:35:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:35:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:56,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:35:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:56,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:56,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:56,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:35:56,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:56,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:35:56,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:56,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:35:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:35:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:35:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:56,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:35:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:56,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:56,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:56,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:35:56,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:56,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 08:35:56,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:56,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:35:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:35:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:35:56,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 08:35:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:35:56,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:35:56,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:35:56,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 08:35:56,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:35:56,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:35:56,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:35:56,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:35:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:35:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 08:35:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:35:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:35:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 26 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:35:56,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127886745] [2020-10-29 08:35:56,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:35:56,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:35:56,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081653064] [2020-10-29 08:35:56,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:35:56,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:35:56,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:35:56,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:35:56,952 INFO L87 Difference]: Start difference. First operand 5842 states and 7282 transitions. Second operand 7 states. [2020-10-29 08:36:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:36:06,505 INFO L93 Difference]: Finished difference Result 12600 states and 15574 transitions. [2020-10-29 08:36:06,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:36:06,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 216 [2020-10-29 08:36:06,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:36:06,543 INFO L225 Difference]: With dead ends: 12600 [2020-10-29 08:36:06,544 INFO L226 Difference]: Without dead ends: 6764 [2020-10-29 08:36:06,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:36:06,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6764 states. [2020-10-29 08:36:06,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6764 to 6623. [2020-10-29 08:36:06,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6623 states. [2020-10-29 08:36:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 8088 transitions. [2020-10-29 08:36:06,755 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 8088 transitions. Word has length 216 [2020-10-29 08:36:06,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:36:06,756 INFO L481 AbstractCegarLoop]: Abstraction has 6623 states and 8088 transitions. [2020-10-29 08:36:06,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:36:06,756 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 8088 transitions. [2020-10-29 08:36:06,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-10-29 08:36:06,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:36:06,767 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:36:06,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:36:06,768 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:36:06,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:36:06,768 INFO L82 PathProgramCache]: Analyzing trace with hash -602391433, now seen corresponding path program 1 times [2020-10-29 08:36:06,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:36:06,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310975691] [2020-10-29 08:36:06,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:36:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:06,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:06,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:07,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:08,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:11,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:11,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 418 [2020-10-29 08:36:11,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:36:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4204 [2020-10-29 08:36:11,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:11,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:36:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:36:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 08:36:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:11,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:36:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:11,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:11,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:11,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:36:11,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:36:11,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:11,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:36:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:36:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:11,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:36:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:11,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:11,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:11,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:36:11,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-29 08:36:11,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:11,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:36:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 08:36:11,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 08:36:11,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-29 08:36:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:11,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:12,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:12,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:36:12,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:12,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-29 08:36:12,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:12,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:12,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:36:12,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:36:12,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:36:12,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:12,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-29 08:36:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:12,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:12,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 08:36:12,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:12,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:36:12,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:12,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:12,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:36:12,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 08:36:12,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:36:12,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:36:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 162 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-29 08:36:12,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310975691] [2020-10-29 08:36:12,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:36:12,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:36:12,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446548823] [2020-10-29 08:36:12,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:36:12,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:36:12,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:36:12,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:36:12,602 INFO L87 Difference]: Start difference. First operand 6623 states and 8088 transitions. Second operand 8 states. [2020-10-29 08:36:31,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:36:31,859 INFO L93 Difference]: Finished difference Result 21301 states and 27088 transitions. [2020-10-29 08:36:31,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 08:36:31,860 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 402 [2020-10-29 08:36:31,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:36:31,914 INFO L225 Difference]: With dead ends: 21301 [2020-10-29 08:36:31,914 INFO L226 Difference]: Without dead ends: 13116 [2020-10-29 08:36:31,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-10-29 08:36:31,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13116 states. [2020-10-29 08:36:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13116 to 10197. [2020-10-29 08:36:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10197 states. [2020-10-29 08:36:32,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 11244 transitions. [2020-10-29 08:36:32,282 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 11244 transitions. Word has length 402 [2020-10-29 08:36:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:36:32,283 INFO L481 AbstractCegarLoop]: Abstraction has 10197 states and 11244 transitions. [2020-10-29 08:36:32,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:36:32,283 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 11244 transitions. [2020-10-29 08:36:32,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-10-29 08:36:32,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:36:32,292 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:36:32,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:36:32,293 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:36:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:36:32,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1020913088, now seen corresponding path program 1 times [2020-10-29 08:36:32,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:36:32,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136312086] [2020-10-29 08:36:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:36:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:32,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:32,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:32,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:37,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:37,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-29 08:36:37,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:36:37,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 08:36:37,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:37,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:37,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:36:37,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:36:37,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-29 08:36:37,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:37,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:36:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:37,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:37,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:37,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:36:37,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:37,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:36:37,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:37,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:37,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:36:37,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:37,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:36:37,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:37,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:36:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:37,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:38,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:38,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:36:38,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:38,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-29 08:36:38,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:38,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:36:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:36:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:36:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:38,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:36:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:38,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:38,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:38,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:36:38,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:38,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:36:38,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:38,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:36:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:36:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:36:38,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 08:36:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-29 08:36:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:39,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:39,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:36:39,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:36:39,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:39,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:36:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 08:36:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:36:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:39,287 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 26 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:36:39,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136312086] [2020-10-29 08:36:39,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:36:39,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:36:39,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105763391] [2020-10-29 08:36:39,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:36:39,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:36:39,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:36:39,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:36:39,295 INFO L87 Difference]: Start difference. First operand 10197 states and 11244 transitions. Second operand 8 states. [2020-10-29 08:36:50,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:36:50,820 INFO L93 Difference]: Finished difference Result 27841 states and 31512 transitions. [2020-10-29 08:36:50,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:36:50,823 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 418 [2020-10-29 08:36:50,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:36:50,885 INFO L225 Difference]: With dead ends: 27841 [2020-10-29 08:36:50,885 INFO L226 Difference]: Without dead ends: 17654 [2020-10-29 08:36:50,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:36:50,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17654 states. [2020-10-29 08:36:51,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17654 to 17555. [2020-10-29 08:36:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17555 states. [2020-10-29 08:36:51,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17555 states to 17555 states and 19605 transitions. [2020-10-29 08:36:51,487 INFO L78 Accepts]: Start accepts. Automaton has 17555 states and 19605 transitions. Word has length 418 [2020-10-29 08:36:51,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:36:51,488 INFO L481 AbstractCegarLoop]: Abstraction has 17555 states and 19605 transitions. [2020-10-29 08:36:51,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:36:51,488 INFO L276 IsEmpty]: Start isEmpty. Operand 17555 states and 19605 transitions. [2020-10-29 08:36:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2020-10-29 08:36:51,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:36:51,524 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:36:51,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:36:51,525 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:36:51,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:36:51,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1717954975, now seen corresponding path program 1 times [2020-10-29 08:36:51,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:36:51,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483108759] [2020-10-29 08:36:51,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:36:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:51,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:52,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:56,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:56,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 967 [2020-10-29 08:36:56,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:36:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-29 08:36:56,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:56,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:36:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:36:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 08:36:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:57,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:36:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:57,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:57,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:36:57,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:36:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:57,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:36:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:36:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:57,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:36:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:57,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:57,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:57,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:36:57,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:57,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:36:57,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:57,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:36:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:36:57,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:57,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:36:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:57,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:57,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:57,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:36:57,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 08:36:57,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:57,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:36:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:36:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:57,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:36:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:57,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:57,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:57,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:36:57,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:57,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:36:57,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:57,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:36:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:36:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:57,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:36:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:58,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:58,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:58,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:36:58,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:58,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-29 08:36:58,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:58,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:58,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:36:58,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:58,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:36:58,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:58,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:36:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:58,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:58,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:58,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:36:58,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:36:58,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:58,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:36:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:36:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:36:58,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:58,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:36:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:36:58,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:36:58,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:36:58,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:36:58,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:36:58,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:36:58,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:36:58,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:36:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:36:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:36:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:36:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:36:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-29 08:36:59,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483108759] [2020-10-29 08:36:59,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:36:59,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:36:59,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884976186] [2020-10-29 08:36:59,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:36:59,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:36:59,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:36:59,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:36:59,241 INFO L87 Difference]: Start difference. First operand 17555 states and 19605 transitions. Second operand 7 states. [2020-10-29 08:37:09,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:37:09,374 INFO L93 Difference]: Finished difference Result 40313 states and 46240 transitions. [2020-10-29 08:37:09,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:37:09,376 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 945 [2020-10-29 08:37:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:37:09,467 INFO L225 Difference]: With dead ends: 40313 [2020-10-29 08:37:09,467 INFO L226 Difference]: Without dead ends: 23474 [2020-10-29 08:37:09,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:37:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23474 states. [2020-10-29 08:37:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23474 to 23395. [2020-10-29 08:37:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23395 states. [2020-10-29 08:37:10,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23395 states to 23395 states and 26480 transitions. [2020-10-29 08:37:10,332 INFO L78 Accepts]: Start accepts. Automaton has 23395 states and 26480 transitions. Word has length 945 [2020-10-29 08:37:10,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:37:10,336 INFO L481 AbstractCegarLoop]: Abstraction has 23395 states and 26480 transitions. [2020-10-29 08:37:10,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:37:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 23395 states and 26480 transitions. [2020-10-29 08:37:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1029 [2020-10-29 08:37:10,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:10,387 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:37:10,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:37:10,387 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:10,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1772302314, now seen corresponding path program 1 times [2020-10-29 08:37:10,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:10,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719201953] [2020-10-29 08:37:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:10,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:11,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:11,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:15,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:15,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1052 [2020-10-29 08:37:15,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:37:15,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 08:37:15,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:15,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:37:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:37:15,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:37:15,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:15,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:15,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:15,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:15,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:37:15,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:15,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:15,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:37:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:15,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:16,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:16,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:37:16,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:16,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 08:37:16,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:16,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:16,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:37:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:16,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:16,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:16,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:37:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:16,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:16,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:16,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:37:16,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:16,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:37:16,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:16,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:16,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:37:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:16,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:16,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:37:16,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:16,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:37:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:16,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:16,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:16,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:37:16,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:16,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:37:16,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:16,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:37:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:37:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:16,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:17,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:17,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:37:17,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:17,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:37:17,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:17,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:17,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:17,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:37:17,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:37:17,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:17,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-29 08:37:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:17,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:17,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:17,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:37:17,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:17,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:37:17,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:17,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-29 08:37:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:17,946 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 214 proven. 75 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2020-10-29 08:37:17,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719201953] [2020-10-29 08:37:17,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:37:17,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:37:17,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099866549] [2020-10-29 08:37:17,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:37:17,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:17,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:37:17,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:37:17,949 INFO L87 Difference]: Start difference. First operand 23395 states and 26480 transitions. Second operand 7 states. [2020-10-29 08:37:24,770 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 08:37:29,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:37:29,041 INFO L93 Difference]: Finished difference Result 56907 states and 65572 transitions. [2020-10-29 08:37:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:37:29,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1028 [2020-10-29 08:37:29,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:37:29,163 INFO L225 Difference]: With dead ends: 56907 [2020-10-29 08:37:29,163 INFO L226 Difference]: Without dead ends: 34228 [2020-10-29 08:37:29,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:37:29,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34228 states. [2020-10-29 08:37:29,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34228 to 34159. [2020-10-29 08:37:29,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34159 states. [2020-10-29 08:37:29,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34159 states to 34159 states and 39234 transitions. [2020-10-29 08:37:29,957 INFO L78 Accepts]: Start accepts. Automaton has 34159 states and 39234 transitions. Word has length 1028 [2020-10-29 08:37:29,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:37:29,959 INFO L481 AbstractCegarLoop]: Abstraction has 34159 states and 39234 transitions. [2020-10-29 08:37:29,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:37:29,960 INFO L276 IsEmpty]: Start isEmpty. Operand 34159 states and 39234 transitions. [2020-10-29 08:37:29,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2020-10-29 08:37:29,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:29,976 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:37:29,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:37:29,977 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:29,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:29,978 INFO L82 PathProgramCache]: Analyzing trace with hash -7401396, now seen corresponding path program 1 times [2020-10-29 08:37:29,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:29,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841241645] [2020-10-29 08:37:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:30,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:30,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:33,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:33,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:35,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:35,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1097 [2020-10-29 08:37:35,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:37:35,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-29 08:37:35,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:35,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:37:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:37:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:35,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:35,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:35,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:35,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:35,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:35,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:37:35,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:35,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:35,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:35,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:35,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:35,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:35,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:37:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:35,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:35,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:35,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:37:35,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 08:37:35,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:35,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:35,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:35,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:35,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:36,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:37:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:36,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:36,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:37:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:36,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:36,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:37:36,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:37:36,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:36,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:36,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:36,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:37:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:36,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:36,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:36,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:37:36,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 08:37:36,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:36,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:37:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:36,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:37:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:36,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:36,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:36,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:37:36,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:36,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:37:36,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:36,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:37:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:36,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:37:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:36,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:37:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:37:36,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:36,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-29 08:37:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:36,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:36,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 08:37:36,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:36,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:37:36,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:36,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:36,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:36,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-29 08:37:36,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 306 proven. 95 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-10-29 08:37:37,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841241645] [2020-10-29 08:37:37,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:37:37,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:37:37,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730470314] [2020-10-29 08:37:37,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:37:37,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:37,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:37:37,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:37:37,712 INFO L87 Difference]: Start difference. First operand 34159 states and 39234 transitions. Second operand 7 states. [2020-10-29 08:37:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:37:49,210 INFO L93 Difference]: Finished difference Result 68500 states and 78850 transitions. [2020-10-29 08:37:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:37:49,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1073 [2020-10-29 08:37:49,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:37:49,300 INFO L225 Difference]: With dead ends: 68500 [2020-10-29 08:37:49,300 INFO L226 Difference]: Without dead ends: 35057 [2020-10-29 08:37:49,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:37:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35057 states. [2020-10-29 08:37:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35057 to 34940. [2020-10-29 08:37:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34940 states. [2020-10-29 08:37:50,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34940 states to 34940 states and 39958 transitions. [2020-10-29 08:37:50,068 INFO L78 Accepts]: Start accepts. Automaton has 34940 states and 39958 transitions. Word has length 1073 [2020-10-29 08:37:50,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:37:50,070 INFO L481 AbstractCegarLoop]: Abstraction has 34940 states and 39958 transitions. [2020-10-29 08:37:50,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:37:50,070 INFO L276 IsEmpty]: Start isEmpty. Operand 34940 states and 39958 transitions. [2020-10-29 08:37:50,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1081 [2020-10-29 08:37:50,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:50,098 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:37:50,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:37:50,098 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:50,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:50,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1437386895, now seen corresponding path program 1 times [2020-10-29 08:37:50,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:50,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349982498] [2020-10-29 08:37:50,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:50,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:50,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:52,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:52,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:55,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:55,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1104 [2020-10-29 08:37:55,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:37:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-29 08:37:55,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:55,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-29 08:37:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:37:55,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:55,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:55,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:55,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:55,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:55,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:37:55,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:55,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:55,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:37:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:55,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:55,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:55,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:37:55,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:55,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:37:55,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:55,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:55,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:55,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:37:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:55,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:55,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:55,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:37:55,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:55,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:37:55,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:55,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:55,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:55,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:37:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:55,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:55,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:55,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:56,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:37:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:56,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:56,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:56,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-29 08:37:56,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-29 08:37:56,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:56,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-29 08:37:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:56,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:37:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:56,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:56,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 08:37:56,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:56,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-29 08:37:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:56,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:56,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:56,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:37:56,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:56,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-29 08:37:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:56,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:56,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-29 08:37:56,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:56,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:57,516 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 306 proven. 95 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2020-10-29 08:37:57,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349982498] [2020-10-29 08:37:57,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:37:57,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:37:57,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485025714] [2020-10-29 08:37:57,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:37:57,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:57,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:37:57,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:37:57,520 INFO L87 Difference]: Start difference. First operand 34940 states and 39958 transitions. Second operand 7 states. [2020-10-29 08:38:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:07,201 INFO L93 Difference]: Finished difference Result 70761 states and 81081 transitions. [2020-10-29 08:38:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:38:07,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1080 [2020-10-29 08:38:07,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:07,311 INFO L225 Difference]: With dead ends: 70761 [2020-10-29 08:38:07,312 INFO L226 Difference]: Without dead ends: 36537 [2020-10-29 08:38:07,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:38:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36537 states. [2020-10-29 08:38:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36537 to 36396. [2020-10-29 08:38:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36396 states. [2020-10-29 08:38:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36396 states to 36396 states and 41564 transitions. [2020-10-29 08:38:08,165 INFO L78 Accepts]: Start accepts. Automaton has 36396 states and 41564 transitions. Word has length 1080 [2020-10-29 08:38:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:38:08,167 INFO L481 AbstractCegarLoop]: Abstraction has 36396 states and 41564 transitions. [2020-10-29 08:38:08,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:38:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 36396 states and 41564 transitions. [2020-10-29 08:38:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1096 [2020-10-29 08:38:08,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:08,185 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:38:08,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:38:08,185 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:08,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1155885698, now seen corresponding path program 1 times [2020-10-29 08:38:08,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:08,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129578209] [2020-10-29 08:38:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:08,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:09,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:11,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1119 [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2844 [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-29 08:38:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 08:38:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:11,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:11,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:11,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:11,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:38:11,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:11,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:38:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:11,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:11,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:11,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:11,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:11,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:38:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:11,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:11,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:11,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:38:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:11,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:12,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:12,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:12,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:12,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:12,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:12,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:12,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:38:12,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:12,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:38:12,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:12,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:12,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:12,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:38:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:12,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:12,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:12,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:38:12,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:12,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-29 08:38:12,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:12,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:38:12,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:38:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:12,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:12,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:38:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:38:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 344 proven. 2 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-29 08:38:13,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129578209] [2020-10-29 08:38:13,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:38:13,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:38:13,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925461371] [2020-10-29 08:38:13,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:38:13,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:13,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:38:13,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:38:13,159 INFO L87 Difference]: Start difference. First operand 36396 states and 41564 transitions. Second operand 7 states. [2020-10-29 08:38:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:29,610 INFO L93 Difference]: Finished difference Result 80122 states and 93378 transitions. [2020-10-29 08:38:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:38:29,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1095 [2020-10-29 08:38:29,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:29,730 INFO L225 Difference]: With dead ends: 80122 [2020-10-29 08:38:29,730 INFO L226 Difference]: Without dead ends: 44442 [2020-10-29 08:38:29,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:38:29,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44442 states. [2020-10-29 08:38:30,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44442 to 43607. [2020-10-29 08:38:30,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43607 states. [2020-10-29 08:38:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43607 states to 43607 states and 49687 transitions. [2020-10-29 08:38:30,625 INFO L78 Accepts]: Start accepts. Automaton has 43607 states and 49687 transitions. Word has length 1095 [2020-10-29 08:38:30,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:38:30,627 INFO L481 AbstractCegarLoop]: Abstraction has 43607 states and 49687 transitions. [2020-10-29 08:38:30,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:38:30,627 INFO L276 IsEmpty]: Start isEmpty. Operand 43607 states and 49687 transitions. [2020-10-29 08:38:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-10-29 08:38:30,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:30,642 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:38:30,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:38:30,642 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:30,643 INFO L82 PathProgramCache]: Analyzing trace with hash 980752606, now seen corresponding path program 1 times [2020-10-29 08:38:30,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:30,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406887451] [2020-10-29 08:38:30,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:30,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:32,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:32,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1133 [2020-10-29 08:38:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1573 [2020-10-29 08:38:32,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:32,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-29 08:38:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 08:38:32,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:32,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:32,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:32,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:32,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:38:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:32,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:32,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:38:32,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:32,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:38:32,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:32,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:32,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:32,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:32,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:38:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:38:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:32,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:33,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:38:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:33,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:33,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:33,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:38:33,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:38:33,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:33,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:33,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:38:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:33,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:33,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:33,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:33,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:38:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:38:33,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:33,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:33,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:33,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:38:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:33,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:33,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:33,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:33,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:38:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:33,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:33,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:33,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 08:38:33,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-29 08:38:34,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406887451] [2020-10-29 08:38:34,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:38:34,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:38:34,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670452919] [2020-10-29 08:38:34,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:38:34,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:34,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:38:34,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:38:34,533 INFO L87 Difference]: Start difference. First operand 43607 states and 49687 transitions. Second operand 5 states.