/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 05:05:33,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 05:05:33,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 05:05:33,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 05:05:33,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 05:05:33,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 05:05:33,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 05:05:33,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 05:05:33,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 05:05:33,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 05:05:33,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 05:05:33,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 05:05:33,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 05:05:33,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 05:05:33,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 05:05:33,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 05:05:33,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 05:05:33,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 05:05:33,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 05:05:33,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 05:05:33,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 05:05:33,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 05:05:33,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 05:05:33,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 05:05:33,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 05:05:33,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 05:05:33,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 05:05:33,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 05:05:33,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 05:05:33,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 05:05:33,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 05:05:33,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 05:05:33,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 05:05:33,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 05:05:33,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 05:05:33,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 05:05:33,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 05:05:33,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 05:05:33,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 05:05:33,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 05:05:33,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 05:05:33,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 05:05:33,428 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 05:05:33,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 05:05:33,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 05:05:33,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 05:05:33,434 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 05:05:33,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 05:05:33,434 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 05:05:33,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 05:05:33,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 05:05:33,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 05:05:33,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 05:05:33,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 05:05:33,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 05:05:33,437 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 05:05:33,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 05:05:33,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 05:05:33,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 05:05:33,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 05:05:33,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 05:05:33,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 05:05:33,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 05:05:33,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 05:05:33,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 05:05:33,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 05:05:33,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 05:05:33,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 05:05:33,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 05:05:33,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 05:05:33,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 05:05:33,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 05:05:33,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 05:05:33,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 05:05:33,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 05:05:33,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 05:05:33,975 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 05:05:33,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2020-10-29 05:05:34,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d0b3a46b/57e5b0b5a9684bac88f829967e14780f/FLAG1be0f1729 [2020-10-29 05:05:35,244 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 05:05:35,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2020-10-29 05:05:35,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d0b3a46b/57e5b0b5a9684bac88f829967e14780f/FLAG1be0f1729 [2020-10-29 05:05:35,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d0b3a46b/57e5b0b5a9684bac88f829967e14780f [2020-10-29 05:05:35,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 05:05:35,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 05:05:35,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 05:05:35,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 05:05:35,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 05:05:35,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:05:35" (1/1) ... [2020-10-29 05:05:35,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301ec25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:35, skipping insertion in model container [2020-10-29 05:05:35,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:05:35" (1/1) ... [2020-10-29 05:05:35,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 05:05:35,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 05:05:37,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 05:05:37,330 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 05:05:38,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 05:05:38,243 INFO L208 MainTranslator]: Completed translation [2020-10-29 05:05:38,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38 WrapperNode [2020-10-29 05:05:38,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 05:05:38,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 05:05:38,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 05:05:38,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 05:05:38,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... [2020-10-29 05:05:38,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... [2020-10-29 05:05:38,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... [2020-10-29 05:05:38,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... [2020-10-29 05:05:38,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... [2020-10-29 05:05:38,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... [2020-10-29 05:05:38,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... [2020-10-29 05:05:38,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 05:05:38,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 05:05:38,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 05:05:38,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 05:05:38,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 05:05:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 05:05:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 05:05:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 05:05:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 05:05:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 05:05:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 05:05:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-29 05:05:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 05:05:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 05:05:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 05:05:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 05:05:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-29 05:05:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 05:05:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 05:05:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 05:05:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 05:05:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 05:05:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 05:05:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 05:05:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 05:05:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 05:05:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 05:05:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 05:05:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 05:05:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 05:05:44,130 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 05:05:44,131 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 05:05:44,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:05:44 BoogieIcfgContainer [2020-10-29 05:05:44,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 05:05:44,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 05:05:44,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 05:05:44,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 05:05:44,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:05:35" (1/3) ... [2020-10-29 05:05:44,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6daab2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:05:44, skipping insertion in model container [2020-10-29 05:05:44,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:38" (2/3) ... [2020-10-29 05:05:44,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6daab2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:05:44, skipping insertion in model container [2020-10-29 05:05:44,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:05:44" (3/3) ... [2020-10-29 05:05:44,144 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem04_label13.c [2020-10-29 05:05:44,157 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 05:05:44,163 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 05:05:44,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 05:05:44,232 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 05:05:44,233 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 05:05:44,233 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 05:05:44,233 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 05:05:44,233 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 05:05:44,233 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 05:05:44,233 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 05:05:44,234 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 05:05:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states. [2020-10-29 05:05:44,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2020-10-29 05:05:44,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:05:44,368 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] [2020-10-29 05:05:44,368 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:05:44,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:05:44,380 INFO L82 PathProgramCache]: Analyzing trace with hash 824180392, now seen corresponding path program 1 times [2020-10-29 05:05:44,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:05:44,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417465438] [2020-10-29 05:05:44,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:05:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:05:45,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:05:49,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:05:50,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:05:50,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 807 [2020-10-29 05:05:50,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 05:05:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 05:05:50,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:05:50,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:05:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 05:05:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 05:05:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 798 [2020-10-29 05:05:50,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 05:05:51,164 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 05:05:51,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:05:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:05:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:05:51,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:05:51,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:05:51,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:05:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 05:05:51,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:05:51,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:05:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:05:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:05:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 05:05:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:05:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 05:05:52,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417465438] [2020-10-29 05:05:52,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 05:05:52,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 05:05:52,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118191674] [2020-10-29 05:05:52,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 05:05:52,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:05:52,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 05:05:52,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 05:05:52,642 INFO L87 Difference]: Start difference. First operand 910 states. Second operand 5 states. [2020-10-29 05:06:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:06:03,748 INFO L93 Difference]: Finished difference Result 2677 states and 5144 transitions. [2020-10-29 05:06:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 05:06:03,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 791 [2020-10-29 05:06:03,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:06:03,822 INFO L225 Difference]: With dead ends: 2677 [2020-10-29 05:06:03,822 INFO L226 Difference]: Without dead ends: 1703 [2020-10-29 05:06:03,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 05:06:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2020-10-29 05:06:04,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1688. [2020-10-29 05:06:04,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1688 states. [2020-10-29 05:06:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 3016 transitions. [2020-10-29 05:06:04,050 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 3016 transitions. Word has length 791 [2020-10-29 05:06:04,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:06:04,054 INFO L481 AbstractCegarLoop]: Abstraction has 1688 states and 3016 transitions. [2020-10-29 05:06:04,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 05:06:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 3016 transitions. [2020-10-29 05:06:04,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2020-10-29 05:06:04,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:06:04,085 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] [2020-10-29 05:06:04,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 05:06:04,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:06:04,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:06:04,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1007666473, now seen corresponding path program 1 times [2020-10-29 05:06:04,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:06:04,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102601474] [2020-10-29 05:06:04,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:06:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:04,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:05,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:09,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:09,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 828 [2020-10-29 05:06:09,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 05:06:09,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5288 [2020-10-29 05:06:09,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:09,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 05:06:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 05:06:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 795 [2020-10-29 05:06:09,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 05:06:10,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:06:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:10,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:10,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:10,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:06:10,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:06:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 05:06:10,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:10,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:06:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:06:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:06:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:06:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:06:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:10,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:10,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:10,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 05:06:10,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:06:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 05:06:10,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:10,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:06:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:06:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 05:06:10,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:06:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 05:06:11,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102601474] [2020-10-29 05:06:11,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:06:11,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 05:06:11,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506304524] [2020-10-29 05:06:11,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 05:06:11,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:06:11,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 05:06:11,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 05:06:11,242 INFO L87 Difference]: Start difference. First operand 1688 states and 3016 transitions. Second operand 5 states. [2020-10-29 05:06:20,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:06:20,707 INFO L93 Difference]: Finished difference Result 5075 states and 9125 transitions. [2020-10-29 05:06:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 05:06:20,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 810 [2020-10-29 05:06:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:06:20,733 INFO L225 Difference]: With dead ends: 5075 [2020-10-29 05:06:20,733 INFO L226 Difference]: Without dead ends: 3393 [2020-10-29 05:06:20,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 05:06:20,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2020-10-29 05:06:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 3389. [2020-10-29 05:06:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3389 states. [2020-10-29 05:06:20,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 5244 transitions. [2020-10-29 05:06:20,869 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 5244 transitions. Word has length 810 [2020-10-29 05:06:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:06:20,871 INFO L481 AbstractCegarLoop]: Abstraction has 3389 states and 5244 transitions. [2020-10-29 05:06:20,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 05:06:20,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 5244 transitions. [2020-10-29 05:06:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2020-10-29 05:06:20,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:06:20,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 05:06:20,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 05:06:20,888 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:06:20,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:06:20,890 INFO L82 PathProgramCache]: Analyzing trace with hash -613928291, now seen corresponding path program 1 times [2020-10-29 05:06:20,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:06:20,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799790944] [2020-10-29 05:06:20,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:06:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:20,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:21,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:21,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:26,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:26,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-29 05:06:26,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 05:06:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-29 05:06:26,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:26,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 05:06:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 05:06:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 05:06:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:06:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:06:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:26,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:26,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:26,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:06:26,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:06:26,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 05:06:26,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:26,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:06:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:06:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 05:06:26,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:06:26,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:06:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:26,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:26,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:26,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:26,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 05:06:26,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 05:06:26,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 05:06:26,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:26,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:26,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:06:26,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:06:26,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 05:06:26,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:06:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 05:06:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:26,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:26,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:26,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 05:06:26,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:06:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 05:06:26,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:26,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:26,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:06:26,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:06:26,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 05:06:26,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:06:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 05:06:26,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799790944] [2020-10-29 05:06:26,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:06:26,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 05:06:26,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417793283] [2020-10-29 05:06:26,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 05:06:26,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:06:26,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 05:06:26,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 05:06:26,857 INFO L87 Difference]: Start difference. First operand 3389 states and 5244 transitions. Second operand 8 states. [2020-10-29 05:06:38,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:06:38,664 INFO L93 Difference]: Finished difference Result 10248 states and 16038 transitions. [2020-10-29 05:06:38,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 05:06:38,666 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 820 [2020-10-29 05:06:38,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:06:38,705 INFO L225 Difference]: With dead ends: 10248 [2020-10-29 05:06:38,705 INFO L226 Difference]: Without dead ends: 6865 [2020-10-29 05:06:38,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 05:06:38,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2020-10-29 05:06:38,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 6845. [2020-10-29 05:06:38,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6845 states. [2020-10-29 05:06:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6845 states to 6845 states and 9571 transitions. [2020-10-29 05:06:38,928 INFO L78 Accepts]: Start accepts. Automaton has 6845 states and 9571 transitions. Word has length 820 [2020-10-29 05:06:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:06:38,929 INFO L481 AbstractCegarLoop]: Abstraction has 6845 states and 9571 transitions. [2020-10-29 05:06:38,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 05:06:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 6845 states and 9571 transitions. [2020-10-29 05:06:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2020-10-29 05:06:38,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:06:38,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 05:06:38,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 05:06:38,954 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:06:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:06:38,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1838929238, now seen corresponding path program 1 times [2020-10-29 05:06:38,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:06:38,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270834162] [2020-10-29 05:06:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:06:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:39,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:39,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:40,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:44,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:44,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 857 [2020-10-29 05:06:44,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 05:06:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-29 05:06:44,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:44,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 05:06:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-29 05:06:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 795 [2020-10-29 05:06:44,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:06:44,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:06:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:44,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:44,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:44,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:06:44,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:06:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 05:06:44,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:44,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:06:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:06:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:06:44,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:06:44,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:06:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:06:44,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:06:44,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:06:44,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 05:06:44,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:06:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 05:06:44,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:06:44,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:06:44,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:06:44,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:06:44,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 05:06:44,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:06:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 05:06:45,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270834162] [2020-10-29 05:06:45,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:06:45,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 05:06:45,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70572060] [2020-10-29 05:06:45,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 05:06:45,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:06:45,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 05:06:45,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 05:06:45,462 INFO L87 Difference]: Start difference. First operand 6845 states and 9571 transitions. Second operand 6 states. [2020-10-29 05:06:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:06:59,897 INFO L93 Difference]: Finished difference Result 17076 states and 24700 transitions. [2020-10-29 05:06:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 05:06:59,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 839 [2020-10-29 05:06:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:06:59,943 INFO L225 Difference]: With dead ends: 17076 [2020-10-29 05:06:59,944 INFO L226 Difference]: Without dead ends: 10237 [2020-10-29 05:06:59,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 05:06:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10237 states. [2020-10-29 05:07:00,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10237 to 10233. [2020-10-29 05:07:00,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10233 states. [2020-10-29 05:07:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10233 states to 10233 states and 14032 transitions. [2020-10-29 05:07:00,249 INFO L78 Accepts]: Start accepts. Automaton has 10233 states and 14032 transitions. Word has length 839 [2020-10-29 05:07:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:07:00,252 INFO L481 AbstractCegarLoop]: Abstraction has 10233 states and 14032 transitions. [2020-10-29 05:07:00,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 05:07:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 10233 states and 14032 transitions. [2020-10-29 05:07:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2020-10-29 05:07:00,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:07:00,289 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1] [2020-10-29 05:07:00,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 05:07:00,290 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:07:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:07:00,291 INFO L82 PathProgramCache]: Analyzing trace with hash 862221579, now seen corresponding path program 1 times [2020-10-29 05:07:00,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:07:00,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916029130] [2020-10-29 05:07:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:07:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:00,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:00,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:00,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:05,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:05,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 892 [2020-10-29 05:07:05,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 05:07:05,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-29 05:07:05,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:05,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:07:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 05:07:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 05:07:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 05:07:05,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:07:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:05,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:05,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:05,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:07:05,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:05,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 05:07:05,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:05,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:05,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:07:05,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:07:05,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:07:05,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:07:05,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:07:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:05,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:05,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:05,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 05:07:05,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:05,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 05:07:05,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:05,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:05,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:07:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:07:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 05:07:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:07:05,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 05:07:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:06,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:06,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 05:07:06,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:06,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 05:07:06,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:06,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:06,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:07:06,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:07:06,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 05:07:06,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:07:06,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 05:07:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:06,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:06,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 05:07:06,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:06,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 05:07:06,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:06,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:07:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 05:07:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:07:06,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 79 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-29 05:07:06,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916029130] [2020-10-29 05:07:06,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:07:06,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 05:07:06,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976798822] [2020-10-29 05:07:06,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 05:07:06,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:07:06,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 05:07:06,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 05:07:06,582 INFO L87 Difference]: Start difference. First operand 10233 states and 14032 transitions. Second operand 7 states. [2020-10-29 05:07:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:07:18,270 INFO L93 Difference]: Finished difference Result 20617 states and 28280 transitions. [2020-10-29 05:07:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 05:07:18,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 870 [2020-10-29 05:07:18,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:07:18,324 INFO L225 Difference]: With dead ends: 20617 [2020-10-29 05:07:18,325 INFO L226 Difference]: Without dead ends: 10390 [2020-10-29 05:07:18,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 05:07:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2020-10-29 05:07:18,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 10370. [2020-10-29 05:07:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10370 states. [2020-10-29 05:07:18,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10370 states to 10370 states and 12537 transitions. [2020-10-29 05:07:18,591 INFO L78 Accepts]: Start accepts. Automaton has 10370 states and 12537 transitions. Word has length 870 [2020-10-29 05:07:18,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:07:18,592 INFO L481 AbstractCegarLoop]: Abstraction has 10370 states and 12537 transitions. [2020-10-29 05:07:18,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 05:07:18,592 INFO L276 IsEmpty]: Start isEmpty. Operand 10370 states and 12537 transitions. [2020-10-29 05:07:18,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2020-10-29 05:07:18,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:07:18,624 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 05:07:18,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 05:07:18,624 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:07:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:07:18,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2121831534, now seen corresponding path program 1 times [2020-10-29 05:07:18,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:07:18,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9037658] [2020-10-29 05:07:18,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:07:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:18,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:19,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:23,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:23,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 939 [2020-10-29 05:07:23,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 05:07:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 05:07:23,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:23,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:07:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-29 05:07:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 05:07:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:24,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:07:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:24,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:24,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:24,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:07:24,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:24,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 05:07:24,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:24,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:24,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:07:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:07:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:07:24,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:24,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:07:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:24,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:24,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:24,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 05:07:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 05:07:24,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:24,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:07:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:07:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 05:07:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:24,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 05:07:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:24,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:24,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:24,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 05:07:24,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 05:07:24,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:24,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:07:24,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:07:24,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 05:07:24,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:24,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 05:07:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:24,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:24,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:24,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 05:07:24,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:24,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 05:07:24,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:24,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:24,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:07:24,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 05:07:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:07:24,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 166 proven. 27 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-29 05:07:25,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9037658] [2020-10-29 05:07:25,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:07:25,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 05:07:25,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34195172] [2020-10-29 05:07:25,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 05:07:25,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:07:25,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 05:07:25,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 05:07:25,337 INFO L87 Difference]: Start difference. First operand 10370 states and 12537 transitions. Second operand 8 states. [2020-10-29 05:07:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:07:42,324 INFO L93 Difference]: Finished difference Result 31122 states and 37858 transitions. [2020-10-29 05:07:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 05:07:42,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 917 [2020-10-29 05:07:42,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:07:42,380 INFO L225 Difference]: With dead ends: 31122 [2020-10-29 05:07:42,380 INFO L226 Difference]: Without dead ends: 19836 [2020-10-29 05:07:42,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 05:07:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19836 states. [2020-10-29 05:07:42,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19836 to 19725. [2020-10-29 05:07:42,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19725 states. [2020-10-29 05:07:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19725 states to 19725 states and 21184 transitions. [2020-10-29 05:07:42,805 INFO L78 Accepts]: Start accepts. Automaton has 19725 states and 21184 transitions. Word has length 917 [2020-10-29 05:07:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:07:42,806 INFO L481 AbstractCegarLoop]: Abstraction has 19725 states and 21184 transitions. [2020-10-29 05:07:42,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 05:07:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 19725 states and 21184 transitions. [2020-10-29 05:07:42,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2020-10-29 05:07:42,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:07:42,851 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1] [2020-10-29 05:07:42,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 05:07:42,852 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:07:42,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:07:42,852 INFO L82 PathProgramCache]: Analyzing trace with hash 717049784, now seen corresponding path program 1 times [2020-10-29 05:07:42,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:07:42,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769781478] [2020-10-29 05:07:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:07:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:42,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:43,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:43,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:43,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:47,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 943 [2020-10-29 05:07:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 05:07:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-29 05:07:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:47,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:07:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-29 05:07:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 05:07:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:48,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:07:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:48,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:48,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:48,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:07:48,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:48,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 05:07:48,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:48,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:07:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:07:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:07:48,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:48,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:07:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:48,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:48,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:48,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:07:48,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:48,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 05:07:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:48,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:48,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:48,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 05:07:48,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 05:07:48,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:48,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:07:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:07:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 05:07:48,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:48,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 05:07:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:48,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:48,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:48,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 05:07:48,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 05:07:48,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:48,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:07:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:07:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 05:07:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:48,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 05:07:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:48,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:48,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:07:48,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 05:07:48,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:07:48,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 05:07:48,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:07:48,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:07:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:07:48,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 05:07:48,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:07:48,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:07:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 173 proven. 27 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 05:07:49,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769781478] [2020-10-29 05:07:49,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:07:49,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 05:07:49,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38069897] [2020-10-29 05:07:49,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 05:07:49,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:07:49,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 05:07:49,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 05:07:49,232 INFO L87 Difference]: Start difference. First operand 19725 states and 21184 transitions. Second operand 7 states. [2020-10-29 05:07:58,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:07:58,261 INFO L93 Difference]: Finished difference Result 48280 states and 53315 transitions. [2020-10-29 05:07:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 05:07:58,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 919 [2020-10-29 05:07:58,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:07:58,363 INFO L225 Difference]: With dead ends: 48280 [2020-10-29 05:07:58,363 INFO L226 Difference]: Without dead ends: 28561 [2020-10-29 05:07:58,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 05:07:58,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28561 states. [2020-10-29 05:07:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28561 to 28273. [2020-10-29 05:07:59,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28273 states. [2020-10-29 05:07:59,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28273 states to 28273 states and 30240 transitions. [2020-10-29 05:07:59,069 INFO L78 Accepts]: Start accepts. Automaton has 28273 states and 30240 transitions. Word has length 919 [2020-10-29 05:07:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:07:59,069 INFO L481 AbstractCegarLoop]: Abstraction has 28273 states and 30240 transitions. [2020-10-29 05:07:59,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 05:07:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 28273 states and 30240 transitions. [2020-10-29 05:07:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2020-10-29 05:07:59,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:07:59,134 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 05:07:59,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 05:07:59,135 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:07:59,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:07:59,136 INFO L82 PathProgramCache]: Analyzing trace with hash -143427388, now seen corresponding path program 1 times [2020-10-29 05:07:59,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:07:59,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609425864] [2020-10-29 05:07:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:07:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:07:59,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:59,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:07:59,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:00,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:04,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:04,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1041 [2020-10-29 05:08:04,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 05:08:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-29 05:08:04,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:04,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 05:08:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 05:08:04,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:04,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:08:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:04,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:04,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:08:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:04,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:04,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:04,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 05:08:04,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:04,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 05:08:04,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:04,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:08:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 05:08:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:04,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 05:08:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:04,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:04,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:04,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 05:08:04,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:04,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 05:08:04,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:04,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:08:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 05:08:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:04,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-29 05:08:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:04,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:04,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 05:08:04,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:04,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 05:08:04,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:04,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-29 05:08:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:04,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:04,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-29 05:08:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:04,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:04,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:04,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 05:08:04,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:04,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 05:08:04,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:04,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 05:08:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 245 proven. 74 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-29 05:08:05,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609425864] [2020-10-29 05:08:05,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:08:05,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 05:08:05,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913940455] [2020-10-29 05:08:05,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 05:08:05,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:08:05,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 05:08:05,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 05:08:05,599 INFO L87 Difference]: Start difference. First operand 28273 states and 30240 transitions. Second operand 7 states. [2020-10-29 05:08:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:08:13,838 INFO L93 Difference]: Finished difference Result 62737 states and 67804 transitions. [2020-10-29 05:08:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 05:08:13,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1017 [2020-10-29 05:08:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:08:13,944 INFO L225 Difference]: With dead ends: 62737 [2020-10-29 05:08:13,944 INFO L226 Difference]: Without dead ends: 35304 [2020-10-29 05:08:13,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 05:08:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35304 states. [2020-10-29 05:08:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35304 to 34338. [2020-10-29 05:08:14,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34338 states. [2020-10-29 05:08:14,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34338 states to 34338 states and 36765 transitions. [2020-10-29 05:08:14,674 INFO L78 Accepts]: Start accepts. Automaton has 34338 states and 36765 transitions. Word has length 1017 [2020-10-29 05:08:14,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:08:14,675 INFO L481 AbstractCegarLoop]: Abstraction has 34338 states and 36765 transitions. [2020-10-29 05:08:14,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 05:08:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand 34338 states and 36765 transitions. [2020-10-29 05:08:14,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1046 [2020-10-29 05:08:14,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:08:14,764 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 05:08:14,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 05:08:14,765 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:08:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:08:14,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1223957740, now seen corresponding path program 1 times [2020-10-29 05:08:14,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:08:14,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103297667] [2020-10-29 05:08:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:08:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:14,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:14,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:15,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:15,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:17,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:18,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:19,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:19,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1069 [2020-10-29 05:08:19,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 05:08:19,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5091 [2020-10-29 05:08:19,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:19,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-29 05:08:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-29 05:08:19,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:20,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:08:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:20,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:20,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:20,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:08:20,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:20,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 05:08:20,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:20,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:20,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:08:20,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:08:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:20,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:20,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:20,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 05:08:20,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:20,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 05:08:20,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:20,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:08:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 05:08:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:20,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:20,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:20,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 05:08:20,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:20,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 05:08:20,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:20,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:20,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:08:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 05:08:20,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 05:08:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:20,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:20,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:20,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-29 05:08:20,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:20,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-29 05:08:20,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:20,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:20,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:20,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:08:20,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-29 05:08:20,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:21,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 05:08:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:21,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:21,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:21,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 05:08:21,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 05:08:21,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:21,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 05:08:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:22,012 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 299 proven. 27 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 05:08:22,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103297667] [2020-10-29 05:08:22,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:08:22,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 05:08:22,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740058953] [2020-10-29 05:08:22,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 05:08:22,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:08:22,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 05:08:22,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 05:08:22,015 INFO L87 Difference]: Start difference. First operand 34338 states and 36765 transitions. Second operand 7 states. [2020-10-29 05:08:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:08:31,993 INFO L93 Difference]: Finished difference Result 81792 states and 89761 transitions. [2020-10-29 05:08:31,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 05:08:31,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1045 [2020-10-29 05:08:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:08:32,160 INFO L225 Difference]: With dead ends: 81792 [2020-10-29 05:08:32,161 INFO L226 Difference]: Without dead ends: 47454 [2020-10-29 05:08:32,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 05:08:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47454 states. [2020-10-29 05:08:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47454 to 47066. [2020-10-29 05:08:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47066 states. [2020-10-29 05:08:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47066 states to 47066 states and 50368 transitions. [2020-10-29 05:08:33,450 INFO L78 Accepts]: Start accepts. Automaton has 47066 states and 50368 transitions. Word has length 1045 [2020-10-29 05:08:33,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:08:33,450 INFO L481 AbstractCegarLoop]: Abstraction has 47066 states and 50368 transitions. [2020-10-29 05:08:33,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 05:08:33,450 INFO L276 IsEmpty]: Start isEmpty. Operand 47066 states and 50368 transitions. [2020-10-29 05:08:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1128 [2020-10-29 05:08:33,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:08:33,522 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 05:08:33,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 05:08:33,522 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:08:33,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:08:33,523 INFO L82 PathProgramCache]: Analyzing trace with hash 841940864, now seen corresponding path program 1 times [2020-10-29 05:08:33,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:08:33,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001484839] [2020-10-29 05:08:33,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:08:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:33,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:33,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:34,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:38,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1151 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 05:08:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:38,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:08:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:38,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:38,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:08:38,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 05:08:38,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:38,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:38,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:38,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:08:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:38,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:39,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:39,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 05:08:39,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:39,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-29 05:08:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:39,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:39,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-29 05:08:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-10-29 05:08:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:39,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:39,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:39,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-29 05:08:39,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:39,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 05:08:39,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:39,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-29 05:08:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:39,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-29 05:08:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:39,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:39,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:39,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 05:08:39,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 05:08:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:39,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 05:08:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 437 proven. 92 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-29 05:08:40,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001484839] [2020-10-29 05:08:40,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:08:40,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 05:08:40,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866094301] [2020-10-29 05:08:40,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 05:08:40,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:08:40,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 05:08:40,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 05:08:40,020 INFO L87 Difference]: Start difference. First operand 47066 states and 50368 transitions. Second operand 7 states. [2020-10-29 05:08:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 05:08:50,732 INFO L93 Difference]: Finished difference Result 116578 states and 129141 transitions. [2020-10-29 05:08:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 05:08:50,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1127 [2020-10-29 05:08:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 05:08:50,958 INFO L225 Difference]: With dead ends: 116578 [2020-10-29 05:08:50,959 INFO L226 Difference]: Without dead ends: 67815 [2020-10-29 05:08:51,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 05:08:51,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67815 states. [2020-10-29 05:08:52,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67815 to 67184. [2020-10-29 05:08:52,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67184 states. [2020-10-29 05:08:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67184 states to 67184 states and 71126 transitions. [2020-10-29 05:08:52,410 INFO L78 Accepts]: Start accepts. Automaton has 67184 states and 71126 transitions. Word has length 1127 [2020-10-29 05:08:52,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 05:08:52,411 INFO L481 AbstractCegarLoop]: Abstraction has 67184 states and 71126 transitions. [2020-10-29 05:08:52,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 05:08:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 67184 states and 71126 transitions. [2020-10-29 05:08:52,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2020-10-29 05:08:52,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 05:08:52,921 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 05:08:52,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 05:08:52,922 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 05:08:52,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 05:08:52,922 INFO L82 PathProgramCache]: Analyzing trace with hash 354203145, now seen corresponding path program 1 times [2020-10-29 05:08:52,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 05:08:52,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803935221] [2020-10-29 05:08:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 05:08:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:53,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:53,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:53,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:54,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:58,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:58,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1158 [2020-10-29 05:08:58,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 05:08:58,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-29 05:08:58,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:58,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-29 05:08:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 05:08:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:58,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 05:08:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:58,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:58,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:58,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 05:08:58,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:58,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 05:08:58,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:58,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:58,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:58,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:58,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:58,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 05:08:58,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 05:08:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:58,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:58,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:58,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 05:08:58,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:58,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 05:08:58,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:58,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 05:08:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 05:08:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 05:08:58,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:58,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 05:08:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:58,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:59,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:59,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 05:08:59,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:59,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-29 05:08:59,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:59,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:59,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 05:08:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 05:08:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 05:08:59,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:59,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 05:08:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:59,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:59,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:59,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:08:59,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2020-10-29 05:08:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 05:08:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 05:08:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 05:08:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 05:09:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 458 proven. 92 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-29 05:09:00,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803935221] [2020-10-29 05:09:00,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 05:09:00,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 05:09:00,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617476994] [2020-10-29 05:09:00,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 05:09:00,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 05:09:00,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 05:09:00,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 05:09:00,068 INFO L87 Difference]: Start difference. First operand 67184 states and 71126 transitions. Second operand 8 states.