/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=DEEPEST --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/Problem04_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:58:46,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:58:46,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:58:46,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:58:46,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:58:46,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:58:46,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:58:46,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:58:46,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:58:46,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:58:46,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:58:46,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:58:46,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:58:46,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:58:46,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:58:46,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:58:46,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:58:46,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:58:46,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:58:46,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:58:46,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:58:46,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:58:46,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:58:46,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:58:46,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:58:46,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:58:46,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:58:46,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:58:46,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:58:46,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:58:46,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:58:46,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:58:46,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:58:46,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:58:46,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:58:46,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:58:46,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:58:46,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:58:46,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:58:46,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:58:46,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:58:46,229 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 [2020-10-27 15:58:46,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:58:46,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:58:46,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:58:46,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:58:46,260 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:58:46,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:58:46,260 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:58:46,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:58:46,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:58:46,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:58:46,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:58:46,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:58:46,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:58:46,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:58:46,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:58:46,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:58:46,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:58:46,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:58:46,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:58:46,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:58:46,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:58:46,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:58:46,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:58:46,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:58:46,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:58:46,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:58:46,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:58:46,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:58:46,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:58:46,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:58:46,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:58:46,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:58:46,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:58:46,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:58:46,786 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:58:46,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label29.c [2020-10-27 15:58:46,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95844287a/be01044fcabc46fd89af078626382c22/FLAGc996a6022 [2020-10-27 15:58:48,077 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:58:48,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label29.c [2020-10-27 15:58:48,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95844287a/be01044fcabc46fd89af078626382c22/FLAGc996a6022 [2020-10-27 15:58:48,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95844287a/be01044fcabc46fd89af078626382c22 [2020-10-27 15:58:48,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:58:48,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:58:48,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:58:48,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:58:48,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:58:48,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:58:48" (1/1) ... [2020-10-27 15:58:48,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a6a057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:48, skipping insertion in model container [2020-10-27 15:58:48,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:58:48" (1/1) ... [2020-10-27 15:58:48,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:58:48,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:58:50,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:58:50,143 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:58:50,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:58:50,937 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:58:50,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50 WrapperNode [2020-10-27 15:58:50,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:58:50,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:58:50,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:58:50,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:58:50,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (1/1) ... [2020-10-27 15:58:50,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (1/1) ... [2020-10-27 15:58:51,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (1/1) ... [2020-10-27 15:58:51,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (1/1) ... [2020-10-27 15:58:51,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (1/1) ... [2020-10-27 15:58:51,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (1/1) ... [2020-10-27 15:58:51,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (1/1) ... [2020-10-27 15:58:51,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:58:51,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:58:51,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:58:51,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:58:51,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (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 [2020-10-27 15:58:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:58:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:58:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:58:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:58:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-27 15:58:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-27 15:58:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-27 15:58:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:58:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:58:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-27 15:58:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-27 15:58:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-27 15:58:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:58:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:58:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:58:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:58:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:58:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:58:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:58:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:58:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:58:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:58:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:58:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:58:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:58:56,761 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:58:56,764 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:58:56,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:58:56 BoogieIcfgContainer [2020-10-27 15:58:56,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:58:56,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:58:56,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:58:56,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:58:56,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:58:48" (1/3) ... [2020-10-27 15:58:56,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc8b413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:58:56, skipping insertion in model container [2020-10-27 15:58:56,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:58:50" (2/3) ... [2020-10-27 15:58:56,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc8b413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:58:56, skipping insertion in model container [2020-10-27 15:58:56,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:58:56" (3/3) ... [2020-10-27 15:58:56,776 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem04_label29.c [2020-10-27 15:58:56,787 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:58:56,801 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:58:56,814 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:58:56,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:58:56,857 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:58:56,857 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:58:56,857 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:58:56,858 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:58:56,858 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:58:56,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:58:56,858 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:58:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states. [2020-10-27 15:58:57,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-10-27 15:58:57,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:58:57,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:58:57,014 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:58:57,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:58:57,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1970283200, now seen corresponding path program 1 times [2020-10-27 15:58:57,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:58:57,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830933672] [2020-10-27 15:58:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:58:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:58:58,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:02,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:02,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 813 [2020-10-27 15:59:02,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:02,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 15:59:02,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:59:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:59:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 804 [2020-10-27 15:59:02,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:59:03,619 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 15:59:03,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:59:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:03,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:03,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:03,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:59:03,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:03,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 15:59:03,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:59:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:59:03,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:59:05,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830933672] [2020-10-27 15:59:05,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:59:05,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:59:05,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246525547] [2020-10-27 15:59:05,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:59:05,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:59:05,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:59:05,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:59:05,349 INFO L87 Difference]: Start difference. First operand 910 states. Second operand 5 states. [2020-10-27 15:59:05,604 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 15:59:16,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:59:16,180 INFO L93 Difference]: Finished difference Result 2677 states and 5144 transitions. [2020-10-27 15:59:16,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:59:16,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 797 [2020-10-27 15:59:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:59:16,230 INFO L225 Difference]: With dead ends: 2677 [2020-10-27 15:59:16,230 INFO L226 Difference]: Without dead ends: 1703 [2020-10-27 15:59:16,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:59:16,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2020-10-27 15:59:16,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1688. [2020-10-27 15:59:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1688 states. [2020-10-27 15:59:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 3016 transitions. [2020-10-27 15:59:16,439 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 3016 transitions. Word has length 797 [2020-10-27 15:59:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:59:16,443 INFO L481 AbstractCegarLoop]: Abstraction has 1688 states and 3016 transitions. [2020-10-27 15:59:16,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:59:16,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 3016 transitions. [2020-10-27 15:59:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2020-10-27 15:59:16,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:59:16,479 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:59:16,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:59:16,480 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:59:16,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:59:16,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1837627951, now seen corresponding path program 1 times [2020-10-27 15:59:16,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:59:16,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685134743] [2020-10-27 15:59:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:59:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:16,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:17,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:19,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:21,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:21,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 834 [2020-10-27 15:59:21,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:59:21,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 15:59:21,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:21,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 15:59:21,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 15:59:21,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 801 [2020-10-27 15:59:21,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:59:22,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:59:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:22,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:22,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:22,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:59:22,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:22,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 15:59:22,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:59:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:59:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 15:59:22,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:59:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:22,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:22,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:22,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:59:22,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:22,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 15:59:22,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:22,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:59:22,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:22,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:59:22,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:23,098 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:59:23,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685134743] [2020-10-27 15:59:23,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:59:23,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:59:23,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652561876] [2020-10-27 15:59:23,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:59:23,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:59:23,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:59:23,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:59:23,104 INFO L87 Difference]: Start difference. First operand 1688 states and 3016 transitions. Second operand 5 states. [2020-10-27 15:59:32,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:59:32,948 INFO L93 Difference]: Finished difference Result 5075 states and 9125 transitions. [2020-10-27 15:59:32,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:59:32,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 816 [2020-10-27 15:59:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:59:32,978 INFO L225 Difference]: With dead ends: 5075 [2020-10-27 15:59:32,978 INFO L226 Difference]: Without dead ends: 3393 [2020-10-27 15:59:32,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:59:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2020-10-27 15:59:33,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 3389. [2020-10-27 15:59:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3389 states. [2020-10-27 15:59:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 5274 transitions. [2020-10-27 15:59:33,094 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 5274 transitions. Word has length 816 [2020-10-27 15:59:33,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:59:33,096 INFO L481 AbstractCegarLoop]: Abstraction has 3389 states and 5274 transitions. [2020-10-27 15:59:33,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:59:33,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 5274 transitions. [2020-10-27 15:59:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2020-10-27 15:59:33,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:59:33,113 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:59:33,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:59:33,113 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:59:33,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:59:33,114 INFO L82 PathProgramCache]: Analyzing trace with hash -2025574562, now seen corresponding path program 1 times [2020-10-27 15:59:33,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:59:33,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509712302] [2020-10-27 15:59:33,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:59:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:33,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:33,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:33,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:38,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:38,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 881 [2020-10-27 15:59:38,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:59:38,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-27 15:59:38,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:59:38,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 15:59:38,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 15:59:38,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:38,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:59:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:38,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:38,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:59:38,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:59:38,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:59:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:59:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:59:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:38,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:38,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:38,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:59:38,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 15:59:38,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:59:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:59:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:38,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 15:59:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:38,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:38,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:59:38,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 15:59:38,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:59:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:59:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:59:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:38,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:38,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 15:59:38,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 15:59:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:59:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:59:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 15:59:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:39,008 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-27 15:59:39,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509712302] [2020-10-27 15:59:39,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:59:39,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:59:39,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652432394] [2020-10-27 15:59:39,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:59:39,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:59:39,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:59:39,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:59:39,013 INFO L87 Difference]: Start difference. First operand 3389 states and 5274 transitions. Second operand 7 states. [2020-10-27 15:59:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:59:51,099 INFO L93 Difference]: Finished difference Result 8589 states and 13876 transitions. [2020-10-27 15:59:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 15:59:51,100 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 859 [2020-10-27 15:59:51,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:59:51,130 INFO L225 Difference]: With dead ends: 8589 [2020-10-27 15:59:51,130 INFO L226 Difference]: Without dead ends: 5206 [2020-10-27 15:59:51,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:59:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2020-10-27 15:59:51,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 5175. [2020-10-27 15:59:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5175 states. [2020-10-27 15:59:51,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 7629 transitions. [2020-10-27 15:59:51,287 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 7629 transitions. Word has length 859 [2020-10-27 15:59:51,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:59:51,288 INFO L481 AbstractCegarLoop]: Abstraction has 5175 states and 7629 transitions. [2020-10-27 15:59:51,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:59:51,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 7629 transitions. [2020-10-27 15:59:51,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-10-27 15:59:51,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:59:51,314 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:59:51,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:59:51,314 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:59:51,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:59:51,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1514618630, now seen corresponding path program 1 times [2020-10-27 15:59:51,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:59:51,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506115929] [2020-10-27 15:59:51,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:59:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:51,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:51,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:55,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:56,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:56,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 911 [2020-10-27 15:59:56,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:59:56,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-27 15:59:56,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:59:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 15:59:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 15:59:56,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:56,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:59:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:56,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:56,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:56,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:59:56,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:56,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 15:59:56,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:59:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:59:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:59:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:56,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:56,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:56,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:59:56,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 15:59:56,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:59:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:59:56,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:56,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 15:59:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:56,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:56,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:56,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:59:56,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 15:59:56,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:59:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:59:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:59:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:59:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:59:56,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:59:56,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:59:56,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 15:59:56,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:59:56,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 15:59:56,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:59:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:59:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:59:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 15:59:56,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:59:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-27 15:59:57,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506115929] [2020-10-27 15:59:57,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:59:57,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:59:57,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771223372] [2020-10-27 15:59:57,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:59:57,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:59:57,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:59:57,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:59:57,416 INFO L87 Difference]: Start difference. First operand 5175 states and 7629 transitions. Second operand 7 states. [2020-10-27 16:00:08,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 16:00:08,693 INFO L93 Difference]: Finished difference Result 13165 states and 19723 transitions. [2020-10-27 16:00:08,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 16:00:08,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 889 [2020-10-27 16:00:08,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 16:00:08,735 INFO L225 Difference]: With dead ends: 13165 [2020-10-27 16:00:08,735 INFO L226 Difference]: Without dead ends: 7996 [2020-10-27 16:00:08,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 16:00:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7996 states. [2020-10-27 16:00:08,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7996 to 7933. [2020-10-27 16:00:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7933 states. [2020-10-27 16:00:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7933 states to 7933 states and 11007 transitions. [2020-10-27 16:00:09,003 INFO L78 Accepts]: Start accepts. Automaton has 7933 states and 11007 transitions. Word has length 889 [2020-10-27 16:00:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 16:00:09,003 INFO L481 AbstractCegarLoop]: Abstraction has 7933 states and 11007 transitions. [2020-10-27 16:00:09,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 16:00:09,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7933 states and 11007 transitions. [2020-10-27 16:00:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2020-10-27 16:00:09,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 16:00:09,035 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 16:00:09,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 16:00:09,036 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 16:00:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 16:00:09,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1306938164, now seen corresponding path program 1 times [2020-10-27 16:00:09,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 16:00:09,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347714787] [2020-10-27 16:00:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 16:00:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:00:09,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:09,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:14,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:00:14,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 937 [2020-10-27 16:00:14,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 16:00:14,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 16:00:14,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:00:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 16:00:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-27 16:00:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 16:00:14,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:00:14,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 16:00:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:00:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:14,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:00:14,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 16:00:14,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:00:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 16:00:14,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:00:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:00:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:00:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:00:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:00:14,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 16:00:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:00:14,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:14,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:00:14,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 16:00:14,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:00:14,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 16:00:14,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:00:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 16:00:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:00:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 16:00:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:00:14,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 16:00:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:00:14,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:00:14,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 16:00:14,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:00:14,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 16:00:14,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:00:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 16:00:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 16:00:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 16:00:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:00:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 16:00:15,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347714787] [2020-10-27 16:00:15,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 16:00:15,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 16:00:15,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573739466] [2020-10-27 16:00:15,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 16:00:15,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 16:00:15,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 16:00:15,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 16:00:15,005 INFO L87 Difference]: Start difference. First operand 7933 states and 11007 transitions. Second operand 7 states. [2020-10-27 16:00:33,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 16:00:33,565 INFO L93 Difference]: Finished difference Result 31529 states and 46605 transitions. [2020-10-27 16:00:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 16:00:33,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 917 [2020-10-27 16:00:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 16:00:33,665 INFO L225 Difference]: With dead ends: 31529 [2020-10-27 16:00:33,665 INFO L226 Difference]: Without dead ends: 23602 [2020-10-27 16:00:33,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 16:00:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23602 states. [2020-10-27 16:00:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23602 to 23550. [2020-10-27 16:00:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23550 states. [2020-10-27 16:00:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23550 states to 23550 states and 30603 transitions. [2020-10-27 16:00:34,344 INFO L78 Accepts]: Start accepts. Automaton has 23550 states and 30603 transitions. Word has length 917 [2020-10-27 16:00:34,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 16:00:34,345 INFO L481 AbstractCegarLoop]: Abstraction has 23550 states and 30603 transitions. [2020-10-27 16:00:34,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 16:00:34,345 INFO L276 IsEmpty]: Start isEmpty. Operand 23550 states and 30603 transitions. [2020-10-27 16:00:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2020-10-27 16:00:34,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 16:00:34,455 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 16:00:34,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 16:00:34,456 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 16:00:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 16:00:34,457 INFO L82 PathProgramCache]: Analyzing trace with hash -144097461, now seen corresponding path program 1 times [2020-10-27 16:00:34,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 16:00:34,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259891944] [2020-10-27 16:00:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 16:00:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:00:34,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:34,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:39,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:00:39,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 960 [2020-10-27 16:00:39,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 16:00:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5202 [2020-10-27 16:00:39,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:00:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 16:00:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-27 16:00:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 466 [2020-10-27 16:00:39,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:00:42,532 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2020-10-27 16:00:42,743 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-27 16:00:42,972 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2020-10-27 16:00:43,261 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 52 [2020-10-27 16:00:43,635 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 53 [2020-10-27 16:00:43,838 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 43 [2020-10-27 16:00:44,021 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-27 16:00:44,266 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-27 16:00:44,557 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 45 [2020-10-27 16:00:44,731 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 35 [2020-10-27 16:00:45,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 16:00:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:00:45,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:45,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:00:45,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 16:00:45,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:00:45,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 16:00:45,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:00:45,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:00:45,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:00:45,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:00:45,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:00:45,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 16:00:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:00:45,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:00:45,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:00:45,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 16:00:45,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:00:45,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-27 16:00:45,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:00:45,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 16:00:45,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:00:45,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-27 16:00:45,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:00:50,748 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 141 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 16:00:50,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259891944] [2020-10-27 16:00:50,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 16:00:50,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 16:00:50,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540975795] [2020-10-27 16:00:50,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 16:00:50,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 16:00:50,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 16:00:50,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-10-27 16:00:50,752 INFO L87 Difference]: Start difference. First operand 23550 states and 30603 transitions. Second operand 17 states. [2020-10-27 16:00:52,801 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-27 16:00:53,081 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 16:00:53,638 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 16:00:54,528 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-27 16:00:55,008 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 148 [2020-10-27 16:01:01,226 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 16:01:01,487 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-27 16:01:02,890 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2020-10-27 16:01:07,243 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2020-10-27 16:01:08,848 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 16:01:09,051 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 16:01:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 16:01:13,555 INFO L93 Difference]: Finished difference Result 47600 states and 62490 transitions. [2020-10-27 16:01:13,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 16:01:13,557 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 942 [2020-10-27 16:01:13,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 16:01:13,653 INFO L225 Difference]: With dead ends: 47600 [2020-10-27 16:01:13,653 INFO L226 Difference]: Without dead ends: 24056 [2020-10-27 16:01:13,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2020-10-27 16:01:13,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24056 states. [2020-10-27 16:01:14,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24056 to 24033. [2020-10-27 16:01:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24033 states. [2020-10-27 16:01:14,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24033 states to 24033 states and 31123 transitions. [2020-10-27 16:01:14,327 INFO L78 Accepts]: Start accepts. Automaton has 24033 states and 31123 transitions. Word has length 942 [2020-10-27 16:01:14,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 16:01:14,328 INFO L481 AbstractCegarLoop]: Abstraction has 24033 states and 31123 transitions. [2020-10-27 16:01:14,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 16:01:14,328 INFO L276 IsEmpty]: Start isEmpty. Operand 24033 states and 31123 transitions. [2020-10-27 16:01:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2020-10-27 16:01:14,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 16:01:14,410 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 16:01:14,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 16:01:14,411 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 16:01:14,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 16:01:14,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1244721852, now seen corresponding path program 1 times [2020-10-27 16:01:14,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 16:01:14,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334287336] [2020-10-27 16:01:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 16:01:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:14,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:14,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:18,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:19,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:19,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:19,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 965 [2020-10-27 16:01:19,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 16:01:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-27 16:01:19,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 16:01:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-27 16:01:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 801 [2020-10-27 16:01:19,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:19,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 16:01:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:20,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:20,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:20,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 16:01:20,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:01:20,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 16:01:20,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:01:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:01:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:01:20,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:20,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 16:01:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:20,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:20,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:20,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 16:01:20,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:01:20,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 16:01:20,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:01:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:01:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:01:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:20,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 16:01:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:20,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:20,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:20,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-27 16:01:20,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:01:20,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-27 16:01:20,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 16:01:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:01:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 16:01:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 16:01:21,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334287336] [2020-10-27 16:01:21,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 16:01:21,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 16:01:21,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769874202] [2020-10-27 16:01:21,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 16:01:21,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 16:01:21,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 16:01:21,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 16:01:21,306 INFO L87 Difference]: Start difference. First operand 24033 states and 31123 transitions. Second operand 5 states. [2020-10-27 16:01:33,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 16:01:33,666 INFO L93 Difference]: Finished difference Result 65783 states and 87035 transitions. [2020-10-27 16:01:33,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 16:01:33,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 945 [2020-10-27 16:01:33,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 16:01:33,842 INFO L225 Difference]: With dead ends: 65783 [2020-10-27 16:01:33,842 INFO L226 Difference]: Without dead ends: 41756 [2020-10-27 16:01:33,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 16:01:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41756 states. [2020-10-27 16:01:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41756 to 35036. [2020-10-27 16:01:34,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35036 states. [2020-10-27 16:01:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35036 states to 35036 states and 45555 transitions. [2020-10-27 16:01:34,803 INFO L78 Accepts]: Start accepts. Automaton has 35036 states and 45555 transitions. Word has length 945 [2020-10-27 16:01:34,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 16:01:34,805 INFO L481 AbstractCegarLoop]: Abstraction has 35036 states and 45555 transitions. [2020-10-27 16:01:34,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 16:01:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 35036 states and 45555 transitions. [2020-10-27 16:01:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2020-10-27 16:01:35,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 16:01:35,164 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 16:01:35,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 16:01:35,165 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 16:01:35,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 16:01:35,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1778796942, now seen corresponding path program 1 times [2020-10-27 16:01:35,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 16:01:35,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084910206] [2020-10-27 16:01:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 16:01:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:35,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:35,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:37,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:39,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:40,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:40,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 969 [2020-10-27 16:01:40,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 16:01:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-27 16:01:40,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 16:01:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-27 16:01:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 801 [2020-10-27 16:01:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:40,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 16:01:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:40,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:40,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:40,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 16:01:40,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:01:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 16:01:40,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:01:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:01:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:01:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:40,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 16:01:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:40,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:40,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:40,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 16:01:40,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:01:40,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 16:01:40,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:01:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:01:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:01:40,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:40,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 16:01:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:40,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:40,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 16:01:40,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:01:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 16:01:40,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:01:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:01:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:01:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:40,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 16:01:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:01:40,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:01:40,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:01:40,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 16:01:40,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:01:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 16:01:40,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:01:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 16:01:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:01:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 16:01:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:01:41,741 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 144 proven. 3 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-27 16:01:41,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084910206] [2020-10-27 16:01:41,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 16:01:41,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 16:01:41,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706288908] [2020-10-27 16:01:41,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 16:01:41,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 16:01:41,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 16:01:41,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 16:01:41,743 INFO L87 Difference]: Start difference. First operand 35036 states and 45555 transitions. Second operand 6 states. [2020-10-27 16:02:00,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 16:02:00,343 INFO L93 Difference]: Finished difference Result 127405 states and 173339 transitions. [2020-10-27 16:02:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 16:02:00,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 947 [2020-10-27 16:02:00,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 16:02:00,804 INFO L225 Difference]: With dead ends: 127405 [2020-10-27 16:02:00,804 INFO L226 Difference]: Without dead ends: 92375 [2020-10-27 16:02:00,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 16:02:00,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92375 states. [2020-10-27 16:02:04,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92375 to 86527. [2020-10-27 16:02:04,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86527 states. [2020-10-27 16:02:04,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86527 states to 86527 states and 116793 transitions. [2020-10-27 16:02:04,449 INFO L78 Accepts]: Start accepts. Automaton has 86527 states and 116793 transitions. Word has length 947 [2020-10-27 16:02:04,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 16:02:04,450 INFO L481 AbstractCegarLoop]: Abstraction has 86527 states and 116793 transitions. [2020-10-27 16:02:04,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 16:02:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 86527 states and 116793 transitions. [2020-10-27 16:02:04,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1240 [2020-10-27 16:02:04,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 16:02:04,794 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 16:02:04,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 16:02:04,795 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 16:02:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 16:02:04,795 INFO L82 PathProgramCache]: Analyzing trace with hash -847529498, now seen corresponding path program 1 times [2020-10-27 16:02:04,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 16:02:04,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864227141] [2020-10-27 16:02:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 16:02:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:02:05,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:05,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:05,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:10,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1263 [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5109 [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 359 [2020-10-27 16:02:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:02:10,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 16:02:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:02:10,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:10,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:02:10,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 16:02:10,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:02:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 16:02:10,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:02:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:02:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:02:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:02:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:02:10,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 16:02:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:02:10,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:10,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:02:10,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 16:02:10,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:02:10,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 16:02:10,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:02:10,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 16:02:10,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:02:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 16:02:10,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:02:10,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 16:02:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:02:10,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:10,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:02:10,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-27 16:02:10,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:02:10,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 16:02:10,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:02:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 16:02:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 16:02:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 16:02:10,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:02:10,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 16:02:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:02:10,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 16:02:11,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 16:02:11,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-27 16:02:11,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 16:02:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-10-27 16:02:11,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 16:02:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 16:02:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 16:02:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 360 [2020-10-27 16:02:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 16:02:11,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 16:02:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 16:02:11,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking...