/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/Problem16_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:58:49,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:58:49,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:58:49,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:58:49,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:58:49,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:58:49,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:58:49,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:58:49,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:58:49,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:58:49,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:58:49,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:58:49,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:58:49,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:58:49,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:58:49,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:58:49,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:58:49,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:58:49,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:58:49,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:58:49,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:58:49,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:58:49,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:58:49,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:58:49,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:58:49,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:58:49,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:58:49,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:58:49,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:58:49,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:58:49,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:58:49,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:58:49,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:58:49,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:58:49,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:58:49,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:58:49,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:58:49,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:58:49,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:58:49,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:58:49,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:58:49,627 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 07:58:49,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:58:49,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:58:49,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:58:49,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:58:49,660 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:58:49,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:58:49,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:58:49,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:58:49,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:58:49,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:58:49,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:58:49,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:58:49,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:58:49,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:58:49,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:58:49,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:58:49,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:58:49,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:58:49,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:58:49,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:58:49,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:58:49,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:58:49,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:58:49,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:58:49,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:58:49,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:58:49,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:58:49,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:58:49,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:58:49,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:58:50,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:58:50,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:58:50,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:58:50,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:58:50,094 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:58:50,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label15.c [2020-10-29 07:58:50,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc114004b/fc26b3c0a68f45488bdda082070b30b5/FLAGc4be0baf0 [2020-10-29 07:58:51,136 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:58:51,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label15.c [2020-10-29 07:58:51,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc114004b/fc26b3c0a68f45488bdda082070b30b5/FLAGc4be0baf0 [2020-10-29 07:58:51,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc114004b/fc26b3c0a68f45488bdda082070b30b5 [2020-10-29 07:58:51,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:58:51,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:58:51,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:58:51,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:58:51,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:58:51,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:58:51" (1/1) ... [2020-10-29 07:58:51,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ecd33ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:51, skipping insertion in model container [2020-10-29 07:58:51,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:58:51" (1/1) ... [2020-10-29 07:58:51,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:58:51,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:58:52,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:58:52,351 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:58:52,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:58:52,620 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:58:52,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52 WrapperNode [2020-10-29 07:58:52,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:58:52,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:58:52,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:58:52,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:58:52,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (1/1) ... [2020-10-29 07:58:52,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (1/1) ... [2020-10-29 07:58:52,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (1/1) ... [2020-10-29 07:58:52,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (1/1) ... [2020-10-29 07:58:52,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (1/1) ... [2020-10-29 07:58:52,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (1/1) ... [2020-10-29 07:58:52,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (1/1) ... [2020-10-29 07:58:52,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:58:52,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:58:52,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:58:52,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:58:52,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (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 07:58:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:58:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:58:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:58:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:58:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 07:58:52,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:58:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:58:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 07:58:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:58:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:58:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:58:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:58:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:58:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:58:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:58:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:58:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:58:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:58:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:58:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:58:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:58:56,089 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:58:56,090 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:58:56,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:58:56 BoogieIcfgContainer [2020-10-29 07:58:56,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:58:56,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:58:56,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:58:56,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:58:56,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:58:51" (1/3) ... [2020-10-29 07:58:56,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd8e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:58:56, skipping insertion in model container [2020-10-29 07:58:56,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:52" (2/3) ... [2020-10-29 07:58:56,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd8e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:58:56, skipping insertion in model container [2020-10-29 07:58:56,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:58:56" (3/3) ... [2020-10-29 07:58:56,104 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label15.c [2020-10-29 07:58:56,119 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:58:56,126 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:58:56,144 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:58:56,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:58:56,180 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:58:56,181 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:58:56,181 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:58:56,181 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:58:56,181 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:58:56,181 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:58:56,181 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:58:56,213 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 07:58:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 07:58:56,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:56,222 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] [2020-10-29 07:58:56,223 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:56,231 INFO L82 PathProgramCache]: Analyzing trace with hash 211398092, now seen corresponding path program 1 times [2020-10-29 07:58:56,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:56,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797493243] [2020-10-29 07:58:56,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:56,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:56,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:56,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 07:58:56,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:56,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-10-29 07:58:56,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:56,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:56,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:58:56,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 07:58:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:58:57,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:57,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:57,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:57,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:57,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:57,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 07:58:57,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:57,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:57,245 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 07:58:57,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797493243] [2020-10-29 07:58:57,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:58:57,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:58:57,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414709228] [2020-10-29 07:58:57,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:58:57,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:57,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:58:57,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:58:57,285 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 07:59:02,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:02,295 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-29 07:59:02,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:59:02,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-29 07:59:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:02,319 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 07:59:02,320 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 07:59:02,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:59:02,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 07:59:02,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-29 07:59:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-29 07:59:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-29 07:59:02,443 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 29 [2020-10-29 07:59:02,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:02,444 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-29 07:59:02,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:59:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-29 07:59:02,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-29 07:59:02,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:02,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:02,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:59:02,452 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:02,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:02,454 INFO L82 PathProgramCache]: Analyzing trace with hash 564705261, now seen corresponding path program 1 times [2020-10-29 07:59:02,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:02,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193618493] [2020-10-29 07:59:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:02,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:03,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:03,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:03,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 07:59:03,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-10-29 07:59:03,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:03,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 07:59:03,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:03,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:03,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:03,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:03,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:03,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:59:03,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:03,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:03,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:03,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:03,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:03,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:03,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:03,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:04,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:04,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:59:04,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:04,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-29 07:59:04,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:04,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:59:04,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:59:04,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193618493] [2020-10-29 07:59:04,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:59:04,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:59:04,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881574153] [2020-10-29 07:59:04,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:04,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:04,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:04,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:04,127 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 7 states. [2020-10-29 07:59:09,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:09,636 INFO L93 Difference]: Finished difference Result 2090 states and 3102 transitions. [2020-10-29 07:59:09,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:59:09,637 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-29 07:59:09,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:09,650 INFO L225 Difference]: With dead ends: 2090 [2020-10-29 07:59:09,650 INFO L226 Difference]: Without dead ends: 1403 [2020-10-29 07:59:09,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:59:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2020-10-29 07:59:09,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1379. [2020-10-29 07:59:09,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-10-29 07:59:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1813 transitions. [2020-10-29 07:59:09,760 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1813 transitions. Word has length 105 [2020-10-29 07:59:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:09,761 INFO L481 AbstractCegarLoop]: Abstraction has 1379 states and 1813 transitions. [2020-10-29 07:59:09,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:09,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1813 transitions. [2020-10-29 07:59:09,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-29 07:59:09,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:09,777 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:59:09,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:59:09,777 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:09,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:09,782 INFO L82 PathProgramCache]: Analyzing trace with hash -859525506, now seen corresponding path program 1 times [2020-10-29 07:59:09,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:09,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277761706] [2020-10-29 07:59:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:09,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:09,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:10,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:11,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:11,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:13,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:13,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-29 07:59:13,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:59:13,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3387 [2020-10-29 07:59:13,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:13,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:59:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 07:59:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:13,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:13,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:13,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:13,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:13,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:13,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:59:13,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:13,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:13,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:13,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:13,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:13,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:13,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:13,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:13,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:59:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-29 07:59:13,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:13,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:59:13,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:13,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:59:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:13,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:13,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:13,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 07:59:13,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 07:59:13,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:13,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 07:59:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:14,072 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:59:14,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277761706] [2020-10-29 07:59:14,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:14,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:14,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110764230] [2020-10-29 07:59:14,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:14,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:14,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:14,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:14,076 INFO L87 Difference]: Start difference. First operand 1379 states and 1813 transitions. Second operand 7 states. [2020-10-29 07:59:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:19,712 INFO L93 Difference]: Finished difference Result 3485 states and 4770 transitions. [2020-10-29 07:59:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:59:19,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-10-29 07:59:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:19,735 INFO L225 Difference]: With dead ends: 3485 [2020-10-29 07:59:19,736 INFO L226 Difference]: Without dead ends: 2112 [2020-10-29 07:59:19,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:59:19,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2020-10-29 07:59:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2083. [2020-10-29 07:59:19,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-10-29 07:59:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2688 transitions. [2020-10-29 07:59:19,815 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2688 transitions. Word has length 192 [2020-10-29 07:59:19,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:19,816 INFO L481 AbstractCegarLoop]: Abstraction has 2083 states and 2688 transitions. [2020-10-29 07:59:19,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:19,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2688 transitions. [2020-10-29 07:59:19,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-29 07:59:19,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:19,821 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:59:19,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:59:19,821 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:19,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:19,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1481011196, now seen corresponding path program 1 times [2020-10-29 07:59:19,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:19,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525384432] [2020-10-29 07:59:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:19,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:20,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:22,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:22,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-29 07:59:22,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:59:22,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2750 [2020-10-29 07:59:22,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:22,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:22,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 07:59:22,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:22,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 260 [2020-10-29 07:59:22,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:22,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:22,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:22,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:22,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:22,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:59:22,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:22,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:22,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:22,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:22,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:22,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:22,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:22,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:22,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:22,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:59:22,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:22,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 07:59:22,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:22,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:59:22,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:22,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:59:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:23,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:23,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:23,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:23,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 07:59:23,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:23,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-29 07:59:23,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:23,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:23,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:23,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:23,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 07:59:23,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:23,655 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 34 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 07:59:23,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525384432] [2020-10-29 07:59:23,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:23,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:23,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168535289] [2020-10-29 07:59:23,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:23,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:23,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:23,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:23,658 INFO L87 Difference]: Start difference. First operand 2083 states and 2688 transitions. Second operand 7 states. [2020-10-29 07:59:33,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:33,148 INFO L93 Difference]: Finished difference Result 5554 states and 7132 transitions. [2020-10-29 07:59:33,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:59:33,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-10-29 07:59:33,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:33,169 INFO L225 Difference]: With dead ends: 5554 [2020-10-29 07:59:33,169 INFO L226 Difference]: Without dead ends: 3477 [2020-10-29 07:59:33,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:59:33,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2020-10-29 07:59:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3122. [2020-10-29 07:59:33,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3122 states. [2020-10-29 07:59:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 3975 transitions. [2020-10-29 07:59:33,275 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 3975 transitions. Word has length 255 [2020-10-29 07:59:33,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:33,276 INFO L481 AbstractCegarLoop]: Abstraction has 3122 states and 3975 transitions. [2020-10-29 07:59:33,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 3975 transitions. [2020-10-29 07:59:33,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-29 07:59:33,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:33,288 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 07:59:33,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:59:33,289 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:33,290 INFO L82 PathProgramCache]: Analyzing trace with hash 871473068, now seen corresponding path program 1 times [2020-10-29 07:59:33,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:33,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082176578] [2020-10-29 07:59:33,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:33,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:33,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:34,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:35,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:36,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:36,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:36,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:38,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 475 [2020-10-29 07:59:38,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 07:59:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-29 07:59:38,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:38,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 07:59:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 07:59:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:38,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:38,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:38,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:38,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:38,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 07:59:38,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:38,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:38,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:38,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:38,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:38,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:38,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:38,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:38,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:59:38,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:38,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 07:59:38,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:38,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:38,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:38,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:38,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:59:38,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:38,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:59:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:38,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:38,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 07:59:38,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:38,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-29 07:59:38,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:38,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:59:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:39,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 07:59:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:39,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:39,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:39,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:39,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 07:59:39,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:39,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 07:59:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:39,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-29 07:59:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:39,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:39,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:39,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 07:59:39,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:39,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:59:39,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:39,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-29 07:59:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:39,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 268 proven. 172 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-10-29 07:59:39,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082176578] [2020-10-29 07:59:39,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:39,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:59:39,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321126731] [2020-10-29 07:59:39,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:59:39,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:39,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:59:39,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:59:39,872 INFO L87 Difference]: Start difference. First operand 3122 states and 3975 transitions. Second operand 8 states. [2020-10-29 07:59:47,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:47,730 INFO L93 Difference]: Finished difference Result 7324 states and 9517 transitions. [2020-10-29 07:59:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:59:47,732 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 457 [2020-10-29 07:59:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:47,754 INFO L225 Difference]: With dead ends: 7324 [2020-10-29 07:59:47,754 INFO L226 Difference]: Without dead ends: 3831 [2020-10-29 07:59:47,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 07:59:47,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2020-10-29 07:59:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3133. [2020-10-29 07:59:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3133 states. [2020-10-29 07:59:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 3364 transitions. [2020-10-29 07:59:47,868 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 3364 transitions. Word has length 457 [2020-10-29 07:59:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:47,869 INFO L481 AbstractCegarLoop]: Abstraction has 3133 states and 3364 transitions. [2020-10-29 07:59:47,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:59:47,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 3364 transitions. [2020-10-29 07:59:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2020-10-29 07:59:47,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:47,891 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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] [2020-10-29 07:59:47,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:59:47,892 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:47,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:47,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1116416101, now seen corresponding path program 1 times [2020-10-29 07:59:47,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:47,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680871828] [2020-10-29 07:59:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:48,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:48,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:48,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:48,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 701 [2020-10-29 07:59:53,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:59:53,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-29 07:59:53,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-29 07:59:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 07:59:53,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:53,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:59:53,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 07:59:53,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:59:53,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 07:59:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 07:59:53,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 07:59:53,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 07:59:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 07:59:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:53,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 07:59:53,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 07:59:53,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:53,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 07:59:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:53,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:59:53,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 07:59:53,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:53,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 07:59:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:53,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:53,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 07:59:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:54,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:54,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 07:59:54,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-29 07:59:54,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:54,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 07:59:54,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:54,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1194 backedges. 335 proven. 221 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2020-10-29 07:59:54,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680871828] [2020-10-29 07:59:54,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:54,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:54,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671911968] [2020-10-29 07:59:54,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:54,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:54,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:54,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:54,718 INFO L87 Difference]: Start difference. First operand 3133 states and 3364 transitions. Second operand 7 states. [2020-10-29 07:59:58,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:58,596 INFO L93 Difference]: Finished difference Result 8003 states and 8701 transitions. [2020-10-29 07:59:58,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:59:58,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 681 [2020-10-29 07:59:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:58,619 INFO L225 Difference]: With dead ends: 8003 [2020-10-29 07:59:58,619 INFO L226 Difference]: Without dead ends: 4527 [2020-10-29 07:59:58,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:59:58,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2020-10-29 07:59:58,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4505. [2020-10-29 07:59:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4505 states. [2020-10-29 07:59:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 4890 transitions. [2020-10-29 07:59:58,746 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 4890 transitions. Word has length 681 [2020-10-29 07:59:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:58,746 INFO L481 AbstractCegarLoop]: Abstraction has 4505 states and 4890 transitions. [2020-10-29 07:59:58,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 4890 transitions. [2020-10-29 07:59:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2020-10-29 07:59:58,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:58,789 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:59:58,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:59:58,789 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:58,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:58,790 INFO L82 PathProgramCache]: Analyzing trace with hash -849960123, now seen corresponding path program 1 times [2020-10-29 07:59:58,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:58,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404755336] [2020-10-29 07:59:58,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:58,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:59,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:59,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:00,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 904 [2020-10-29 08:00:04,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:00:04,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-29 08:00:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 447 [2020-10-29 08:00:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:00:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:04,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:00:04,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:04,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:00:04,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:00:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:04,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:00:04,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:00:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:04,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:00:04,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:04,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-29 08:00:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:00:05,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-29 08:00:05,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:00:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:05,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 714 [2020-10-29 08:00:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:05,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:00:05,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-29 08:00:05,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:00:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 551 proven. 148 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-29 08:00:06,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404755336] [2020-10-29 08:00:06,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:06,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:06,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168337653] [2020-10-29 08:00:06,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:06,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:06,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:06,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:06,503 INFO L87 Difference]: Start difference. First operand 4505 states and 4890 transitions. Second operand 7 states. [2020-10-29 08:00:12,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:12,202 INFO L93 Difference]: Finished difference Result 10728 states and 11691 transitions. [2020-10-29 08:00:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:00:12,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 884 [2020-10-29 08:00:12,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:12,236 INFO L225 Difference]: With dead ends: 10728 [2020-10-29 08:00:12,236 INFO L226 Difference]: Without dead ends: 6229 [2020-10-29 08:00:12,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:00:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6229 states. [2020-10-29 08:00:12,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6229 to 5874. [2020-10-29 08:00:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5874 states. [2020-10-29 08:00:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 6314 transitions. [2020-10-29 08:00:12,405 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 6314 transitions. Word has length 884 [2020-10-29 08:00:12,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:12,406 INFO L481 AbstractCegarLoop]: Abstraction has 5874 states and 6314 transitions. [2020-10-29 08:00:12,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:12,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 6314 transitions. [2020-10-29 08:00:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2020-10-29 08:00:12,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:12,427 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:12,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:00:12,428 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:12,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:12,428 INFO L82 PathProgramCache]: Analyzing trace with hash 104373864, now seen corresponding path program 1 times [2020-10-29 08:00:12,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:12,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138029747] [2020-10-29 08:00:12,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:12,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:13,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:13,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:14,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 913 [2020-10-29 08:00:17,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:00:17,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-29 08:00:17,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-29 08:00:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-29 08:00:17,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:17,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:00:17,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:17,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:18,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 08:00:18,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-29 08:00:18,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:00:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:00:18,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-29 08:00:18,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:18,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:18,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-29 08:00:18,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-29 08:00:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:18,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:18,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:18,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:00:18,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 08:00:18,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:18,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:00:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:19,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-29 08:00:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:19,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:19,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:19,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:00:19,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:00:19,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:19,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:00:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:19,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 284 proven. 340 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2020-10-29 08:00:19,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138029747] [2020-10-29 08:00:19,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:19,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:19,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340905986] [2020-10-29 08:00:19,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:19,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:19,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:19,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:19,630 INFO L87 Difference]: Start difference. First operand 5874 states and 6314 transitions. Second operand 7 states. [2020-10-29 08:00:24,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:24,863 INFO L93 Difference]: Finished difference Result 17339 states and 19368 transitions. [2020-10-29 08:00:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:00:24,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 895 [2020-10-29 08:00:24,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:24,925 INFO L225 Difference]: With dead ends: 17339 [2020-10-29 08:00:24,925 INFO L226 Difference]: Without dead ends: 11126 [2020-10-29 08:00:24,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:00:24,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11126 states. [2020-10-29 08:00:25,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11126 to 10304. [2020-10-29 08:00:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10304 states. [2020-10-29 08:00:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10304 states to 10304 states and 11139 transitions. [2020-10-29 08:00:25,250 INFO L78 Accepts]: Start accepts. Automaton has 10304 states and 11139 transitions. Word has length 895 [2020-10-29 08:00:25,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:25,251 INFO L481 AbstractCegarLoop]: Abstraction has 10304 states and 11139 transitions. [2020-10-29 08:00:25,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand 10304 states and 11139 transitions. [2020-10-29 08:00:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1179 [2020-10-29 08:00:25,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:25,288 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:25,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:00:25,288 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:25,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:25,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1580995234, now seen corresponding path program 1 times [2020-10-29 08:00:25,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:25,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578508419] [2020-10-29 08:00:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:25,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:25,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:26,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:26,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1200 [2020-10-29 08:00:30,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:00:30,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-29 08:00:30,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 751 [2020-10-29 08:00:30,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:00:30,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:30,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:00:30,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:31,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:31,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:31,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:00:31,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:31,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:31,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:31,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:31,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:31,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:00:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:31,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:31,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:31,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:31,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:31,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:00:31,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:31,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:31,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:31,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:31,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:31,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:31,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:00:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:31,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:31,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:31,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:00:31,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:31,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:00:31,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:31,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:31,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:31,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:31,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:00:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:31,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:31,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:31,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:00:31,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-29 08:00:31,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:31,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:31,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:00:31,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:31,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2020-10-29 08:00:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:32,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:32,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:32,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:00:32,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:32,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-29 08:00:32,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:32,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:00:32,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:32,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-29 08:00:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:32,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:32,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:32,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:00:32,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:32,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 08:00:32,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:32,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:00:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2279 backedges. 861 proven. 159 refuted. 0 times theorem prover too weak. 1259 trivial. 0 not checked. [2020-10-29 08:00:34,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578508419] [2020-10-29 08:00:34,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:34,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:34,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3456867] [2020-10-29 08:00:34,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:34,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:34,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:34,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:34,896 INFO L87 Difference]: Start difference. First operand 10304 states and 11139 transitions. Second operand 8 states. [2020-10-29 08:00:41,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:41,149 INFO L93 Difference]: Finished difference Result 23322 states and 25441 transitions. [2020-10-29 08:00:41,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 08:00:41,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1178 [2020-10-29 08:00:41,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:41,200 INFO L225 Difference]: With dead ends: 23322 [2020-10-29 08:00:41,200 INFO L226 Difference]: Without dead ends: 13024 [2020-10-29 08:00:41,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:00:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13024 states. [2020-10-29 08:00:41,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13024 to 12681. [2020-10-29 08:00:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12681 states. [2020-10-29 08:00:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12681 states to 12681 states and 13808 transitions. [2020-10-29 08:00:41,511 INFO L78 Accepts]: Start accepts. Automaton has 12681 states and 13808 transitions. Word has length 1178 [2020-10-29 08:00:41,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:41,512 INFO L481 AbstractCegarLoop]: Abstraction has 12681 states and 13808 transitions. [2020-10-29 08:00:41,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:41,512 INFO L276 IsEmpty]: Start isEmpty. Operand 12681 states and 13808 transitions. [2020-10-29 08:00:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1232 [2020-10-29 08:00:41,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:41,552 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:00:41,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:00:41,553 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:41,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:41,554 INFO L82 PathProgramCache]: Analyzing trace with hash -238154454, now seen corresponding path program 1 times [2020-10-29 08:00:41,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:41,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895425267] [2020-10-29 08:00:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:44,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:46,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:46,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1255 [2020-10-29 08:00:46,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:00:46,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 08:00:46,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:46,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-29 08:00:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:00:46,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:47,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:47,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:47,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:00:47,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:47,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:47,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:47,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:47,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:47,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:47,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:47,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:47,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:00:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:47,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:47,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:47,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:47,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:00:47,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:47,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:47,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:47,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:47,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:47,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:47,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:00:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:47,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:47,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:00:47,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:47,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:00:47,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:47,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:47,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:47,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:47,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:00:47,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:47,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:00:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:47,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:00:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:48,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2020-10-29 08:00:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:48,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:48,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:48,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:00:48,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:00:48,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:48,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-29 08:00:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:48,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:00:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:48,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:48,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:48,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:00:48,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:00:48,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:48,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:48,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:48,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:48,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:48,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-29 08:00:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:48,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:00:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:48,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2298 backedges. 613 proven. 429 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2020-10-29 08:00:50,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895425267] [2020-10-29 08:00:50,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:50,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:50,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206059534] [2020-10-29 08:00:50,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:50,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:50,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:50,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:50,046 INFO L87 Difference]: Start difference. First operand 12681 states and 13808 transitions. Second operand 7 states. [2020-10-29 08:00:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:54,696 INFO L93 Difference]: Finished difference Result 26066 states and 28446 transitions. [2020-10-29 08:00:54,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:00:54,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1231 [2020-10-29 08:00:54,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:54,751 INFO L225 Difference]: With dead ends: 26066 [2020-10-29 08:00:54,751 INFO L226 Difference]: Without dead ends: 13391 [2020-10-29 08:00:54,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:00:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13391 states. [2020-10-29 08:00:55,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13391 to 13361. [2020-10-29 08:00:55,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13361 states. [2020-10-29 08:00:55,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13361 states to 13361 states and 14504 transitions. [2020-10-29 08:00:55,077 INFO L78 Accepts]: Start accepts. Automaton has 13361 states and 14504 transitions. Word has length 1231 [2020-10-29 08:00:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:55,078 INFO L481 AbstractCegarLoop]: Abstraction has 13361 states and 14504 transitions. [2020-10-29 08:00:55,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:55,079 INFO L276 IsEmpty]: Start isEmpty. Operand 13361 states and 14504 transitions. [2020-10-29 08:00:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2020-10-29 08:00:55,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:55,127 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:00:55,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:00:55,128 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:55,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:55,128 INFO L82 PathProgramCache]: Analyzing trace with hash -12590982, now seen corresponding path program 1 times [2020-10-29 08:00:55,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:55,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556342094] [2020-10-29 08:00:55,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:55,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:00,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:00,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1306 [2020-10-29 08:01:00,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:00,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-29 08:01:00,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:00,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 527 [2020-10-29 08:01:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:00,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:00,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:00,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:00,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:01:00,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:00,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:00,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:00,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:00,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:00,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:00,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:01:00,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:00,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:01:00,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:00,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:01:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:00,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:00,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:00,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:01:00,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:00,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:00,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:00,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:01:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:00,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:01:01,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:01,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-29 08:01:01,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:01:01,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 08:01:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:01,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-29 08:01:01,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-29 08:01:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-29 08:01:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:01:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:01:02,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:01:02,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1101 [2020-10-29 08:01:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:02,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:01:02,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2467 backedges. 664 proven. 429 refuted. 0 times theorem prover too weak. 1374 trivial. 0 not checked. [2020-10-29 08:01:03,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556342094] [2020-10-29 08:01:03,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:03,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:03,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623196640] [2020-10-29 08:01:03,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:03,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:03,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:03,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:03,580 INFO L87 Difference]: Start difference. First operand 13361 states and 14504 transitions. Second operand 7 states. [2020-10-29 08:01:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:07,755 INFO L93 Difference]: Finished difference Result 26730 states and 29037 transitions. [2020-10-29 08:01:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:01:07,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1282 [2020-10-29 08:01:07,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:07,797 INFO L225 Difference]: With dead ends: 26730 [2020-10-29 08:01:07,798 INFO L226 Difference]: Without dead ends: 13375 [2020-10-29 08:01:07,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:01:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13375 states. [2020-10-29 08:01:08,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13375 to 13361. [2020-10-29 08:01:08,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13361 states. [2020-10-29 08:01:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13361 states to 13361 states and 14496 transitions. [2020-10-29 08:01:08,126 INFO L78 Accepts]: Start accepts. Automaton has 13361 states and 14496 transitions. Word has length 1282 [2020-10-29 08:01:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:08,128 INFO L481 AbstractCegarLoop]: Abstraction has 13361 states and 14496 transitions. [2020-10-29 08:01:08,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 13361 states and 14496 transitions. [2020-10-29 08:01:08,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1296 [2020-10-29 08:01:08,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:08,167 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:01:08,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:01:08,167 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:08,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:08,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1185805022, now seen corresponding path program 1 times [2020-10-29 08:01:08,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:08,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264715674] [2020-10-29 08:01:08,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:08,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:09,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:10,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1321 [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:01:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:01:13,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:01:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:01:13,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-29 08:01:13,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:13,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:01:13,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:01:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:01:14,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:01:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:14,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:01:14,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:01:14,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:01:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-29 08:01:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:14,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:01:14,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:01:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:01:14,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:01:14,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:01:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 860 [2020-10-29 08:01:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:01:14,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 08:01:14,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:01:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:14,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-29 08:01:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 168 proven. 977 refuted. 0 times theorem prover too weak. 2425 trivial. 0 not checked. [2020-10-29 08:01:15,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264715674] [2020-10-29 08:01:15,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:15,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:15,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975099574] [2020-10-29 08:01:15,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:15,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:15,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:15,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:15,755 INFO L87 Difference]: Start difference. First operand 13361 states and 14496 transitions. Second operand 7 states. [2020-10-29 08:01:19,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:19,693 INFO L93 Difference]: Finished difference Result 27398 states and 29698 transitions. [2020-10-29 08:01:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:19,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1295 [2020-10-29 08:01:19,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:19,733 INFO L225 Difference]: With dead ends: 27398 [2020-10-29 08:01:19,733 INFO L226 Difference]: Without dead ends: 14043 [2020-10-29 08:01:19,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:01:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14043 states. [2020-10-29 08:01:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14043 to 14037. [2020-10-29 08:01:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14037 states. [2020-10-29 08:01:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14037 states to 14037 states and 15183 transitions. [2020-10-29 08:01:20,056 INFO L78 Accepts]: Start accepts. Automaton has 14037 states and 15183 transitions. Word has length 1295 [2020-10-29 08:01:20,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:20,057 INFO L481 AbstractCegarLoop]: Abstraction has 14037 states and 15183 transitions. [2020-10-29 08:01:20,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:20,057 INFO L276 IsEmpty]: Start isEmpty. Operand 14037 states and 15183 transitions. [2020-10-29 08:01:20,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1543 [2020-10-29 08:01:20,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:20,105 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:20,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:01:20,106 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:20,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:20,106 INFO L82 PathProgramCache]: Analyzing trace with hash -289049421, now seen corresponding path program 1 times [2020-10-29 08:01:20,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:20,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015676599] [2020-10-29 08:01:20,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:24,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:25,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:25,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1570 [2020-10-29 08:01:25,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:01:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-29 08:01:25,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:25,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:01:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:01:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:01:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:25,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:25,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:25,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:01:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:25,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:25,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:25,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:25,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:01:25,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:01:25,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-29 08:01:25,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:25,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:25,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:25,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:01:25,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:01:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:01:26,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-29 08:01:26,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:01:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:01:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:01:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:01:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:01:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:01:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:26,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:01:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:26,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:26,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 08:01:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-29 08:01:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1361 [2020-10-29 08:01:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:27,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:01:27,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:27,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4848 backedges. 458 proven. 993 refuted. 0 times theorem prover too weak. 3397 trivial. 0 not checked. [2020-10-29 08:01:29,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015676599] [2020-10-29 08:01:29,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:29,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:29,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078026123] [2020-10-29 08:01:29,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:29,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:29,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:29,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:29,701 INFO L87 Difference]: Start difference. First operand 14037 states and 15183 transitions. Second operand 7 states. [2020-10-29 08:01:33,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:33,316 INFO L93 Difference]: Finished difference Result 27731 states and 30018 transitions. [2020-10-29 08:01:33,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:01:33,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1542 [2020-10-29 08:01:33,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:33,358 INFO L225 Difference]: With dead ends: 27731 [2020-10-29 08:01:33,358 INFO L226 Difference]: Without dead ends: 14376 [2020-10-29 08:01:33,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:01:33,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14376 states. [2020-10-29 08:01:33,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14376 to 14374. [2020-10-29 08:01:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14374 states. [2020-10-29 08:01:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14374 states to 14374 states and 15523 transitions. [2020-10-29 08:01:33,638 INFO L78 Accepts]: Start accepts. Automaton has 14374 states and 15523 transitions. Word has length 1542 [2020-10-29 08:01:33,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:33,639 INFO L481 AbstractCegarLoop]: Abstraction has 14374 states and 15523 transitions. [2020-10-29 08:01:33,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 14374 states and 15523 transitions. [2020-10-29 08:01:33,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1638 [2020-10-29 08:01:33,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:33,681 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:33,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:01:33,681 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:33,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:33,682 INFO L82 PathProgramCache]: Analyzing trace with hash 304336850, now seen corresponding path program 1 times [2020-10-29 08:01:33,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:33,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974693091] [2020-10-29 08:01:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:37,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:39,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1667 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5199 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:01:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:39,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:39,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:39,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:39,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:39,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:39,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:39,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:39,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:39,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:39,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:39,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:39,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:39,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:39,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:39,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:39,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:39,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:39,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:01:39,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:39,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:01:39,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:39,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:01:39,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:01:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:39,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:39,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:01:39,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:01:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:40,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:01:40,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:01:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:40,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:01:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:40,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 08:01:40,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:01:40,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:01:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:40,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:01:40,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-29 08:01:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:40,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:40,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-29 08:01:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:01:40,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:01:40,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:01:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1202 [2020-10-29 08:01:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:01:40,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 08:01:40,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:01:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:41,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1456 [2020-10-29 08:01:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:41,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:41,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:41,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 08:01:41,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:41,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5893 backedges. 523 proven. 805 refuted. 0 times theorem prover too weak. 4565 trivial. 0 not checked. [2020-10-29 08:01:42,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974693091] [2020-10-29 08:01:42,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:42,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:42,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603675367] [2020-10-29 08:01:42,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:42,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:42,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:42,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:42,837 INFO L87 Difference]: Start difference. First operand 14374 states and 15523 transitions. Second operand 7 states. [2020-10-29 08:01:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:47,073 INFO L93 Difference]: Finished difference Result 28409 states and 30744 transitions. [2020-10-29 08:01:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:01:47,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1637 [2020-10-29 08:01:47,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:47,108 INFO L225 Difference]: With dead ends: 28409 [2020-10-29 08:01:47,108 INFO L226 Difference]: Without dead ends: 14717 [2020-10-29 08:01:47,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:01:47,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14717 states. [2020-10-29 08:01:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14717 to 14711. [2020-10-29 08:01:47,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14711 states. [2020-10-29 08:01:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14711 states to 14711 states and 15862 transitions. [2020-10-29 08:01:47,419 INFO L78 Accepts]: Start accepts. Automaton has 14711 states and 15862 transitions. Word has length 1637 [2020-10-29 08:01:47,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:47,420 INFO L481 AbstractCegarLoop]: Abstraction has 14711 states and 15862 transitions. [2020-10-29 08:01:47,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:47,420 INFO L276 IsEmpty]: Start isEmpty. Operand 14711 states and 15862 transitions. [2020-10-29 08:01:47,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1640 [2020-10-29 08:01:47,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:47,463 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:47,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:01:47,463 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:47,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:47,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1080696598, now seen corresponding path program 1 times [2020-10-29 08:01:47,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:47,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771514670] [2020-10-29 08:01:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:47,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:52,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:52,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1669 [2020-10-29 08:01:52,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-29 08:01:52,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:52,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1080 [2020-10-29 08:01:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 08:01:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:53,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:53,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:53,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 08:01:53,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:01:53,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:01:53,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:01:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:53,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:01:53,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:01:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-29 08:01:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 814 [2020-10-29 08:01:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2020-10-29 08:01:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:01:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1066 [2020-10-29 08:01:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:01:53,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 08:01:53,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:01:53,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1204 [2020-10-29 08:01:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:01:54,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:01:54,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:01:54,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1458 [2020-10-29 08:01:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5897 backedges. 1135 proven. 272 refuted. 0 times theorem prover too weak. 4490 trivial. 0 not checked. [2020-10-29 08:01:55,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771514670] [2020-10-29 08:01:55,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:55,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:55,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962725398] [2020-10-29 08:01:55,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:55,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:55,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:55,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:55,796 INFO L87 Difference]: Start difference. First operand 14711 states and 15862 transitions. Second operand 7 states. [2020-10-29 08:02:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:00,379 INFO L93 Difference]: Finished difference Result 31129 states and 33773 transitions. [2020-10-29 08:02:00,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:02:00,382 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1639 [2020-10-29 08:02:00,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:00,419 INFO L225 Difference]: With dead ends: 31129 [2020-10-29 08:02:00,419 INFO L226 Difference]: Without dead ends: 15390 [2020-10-29 08:02:00,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:02:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15390 states. [2020-10-29 08:02:00,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15390 to 15366. [2020-10-29 08:02:00,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15366 states. [2020-10-29 08:02:00,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15366 states to 15366 states and 16381 transitions. [2020-10-29 08:02:00,702 INFO L78 Accepts]: Start accepts. Automaton has 15366 states and 16381 transitions. Word has length 1639 [2020-10-29 08:02:00,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:00,704 INFO L481 AbstractCegarLoop]: Abstraction has 15366 states and 16381 transitions. [2020-10-29 08:02:00,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:00,704 INFO L276 IsEmpty]: Start isEmpty. Operand 15366 states and 16381 transitions. [2020-10-29 08:02:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1717 [2020-10-29 08:02:00,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:00,751 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:02:00,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:02:00,752 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:00,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:00,753 INFO L82 PathProgramCache]: Analyzing trace with hash -441620564, now seen corresponding path program 1 times [2020-10-29 08:02:00,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:00,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688043182] [2020-10-29 08:02:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:01,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1746 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1297 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:02:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:02:06,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:02:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:06,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:02:06,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:02:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:06,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:02:06,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-29 08:02:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 814 [2020-10-29 08:02:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:06,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:02:06,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2020-10-29 08:02:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:06,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:02:06,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1066 [2020-10-29 08:02:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-29 08:02:07,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1281 [2020-10-29 08:02:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-29 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:02:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1535 [2020-10-29 08:02:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:02:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:09,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1526 proven. 159 refuted. 0 times theorem prover too weak. 4475 trivial. 0 not checked. [2020-10-29 08:02:09,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688043182] [2020-10-29 08:02:09,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:09,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:09,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367336737] [2020-10-29 08:02:09,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:09,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:09,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:09,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:09,266 INFO L87 Difference]: Start difference. First operand 15366 states and 16381 transitions. Second operand 7 states. [2020-10-29 08:02:13,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:13,746 INFO L93 Difference]: Finished difference Result 30417 states and 32524 transitions. [2020-10-29 08:02:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:02:13,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1716 [2020-10-29 08:02:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:13,784 INFO L225 Difference]: With dead ends: 30417 [2020-10-29 08:02:13,784 INFO L226 Difference]: Without dead ends: 14029 [2020-10-29 08:02:13,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 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 08:02:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14029 states. [2020-10-29 08:02:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14029 to 14001. [2020-10-29 08:02:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14001 states. [2020-10-29 08:02:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14001 states to 14001 states and 14692 transitions. [2020-10-29 08:02:14,055 INFO L78 Accepts]: Start accepts. Automaton has 14001 states and 14692 transitions. Word has length 1716 [2020-10-29 08:02:14,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:14,057 INFO L481 AbstractCegarLoop]: Abstraction has 14001 states and 14692 transitions. [2020-10-29 08:02:14,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 14001 states and 14692 transitions. [2020-10-29 08:02:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1753 [2020-10-29 08:02:14,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:14,103 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:02:14,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:02:14,104 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:14,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:14,105 INFO L82 PathProgramCache]: Analyzing trace with hash -160346201, now seen corresponding path program 1 times [2020-10-29 08:02:14,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:14,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887774133] [2020-10-29 08:02:14,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:14,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking...