/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/Problem14_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:29:32,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:29:32,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:29:32,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:29:32,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:29:32,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:29:32,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:29:32,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:29:32,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:29:32,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:29:32,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:29:32,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:29:32,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:29:32,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:29:32,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:29:32,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:29:32,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:29:32,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:29:32,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:29:32,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:29:32,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:29:32,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:29:32,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:29:32,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:29:32,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:29:32,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:29:32,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:29:32,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:29:32,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:29:32,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:29:32,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:29:32,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:29:32,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:29:32,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:29:32,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:29:32,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:29:32,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:29:32,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:29:32,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:29:32,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:29:32,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:29:32,330 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 07:29:32,357 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:29:32,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:29:32,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:29:32,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:29:32,359 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:29:32,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:29:32,360 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:29:32,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:29:32,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:29:32,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:29:32,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:29:32,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:29:32,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:29:32,362 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:29:32,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:29:32,362 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:29:32,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:29:32,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:29:32,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:29:32,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:29:32,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:29:32,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:29:32,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:29:32,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:29:32,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:29:32,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:29:32,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:29:32,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:29:32,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:29:32,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:29:32,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:29:32,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:29:32,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:29:32,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:29:32,774 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:29:32,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2020-10-29 07:29:32,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78036fd8f/39b4d5661aef4067b40742a002185b25/FLAGb9e46d7e2 [2020-10-29 07:29:33,628 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:29:33,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2020-10-29 07:29:33,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78036fd8f/39b4d5661aef4067b40742a002185b25/FLAGb9e46d7e2 [2020-10-29 07:29:33,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78036fd8f/39b4d5661aef4067b40742a002185b25 [2020-10-29 07:29:33,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:29:33,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:29:33,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:29:33,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:29:33,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:29:33,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:29:33" (1/1) ... [2020-10-29 07:29:33,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431ca9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:33, skipping insertion in model container [2020-10-29 07:29:33,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:29:33" (1/1) ... [2020-10-29 07:29:33,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:29:34,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:29:34,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:29:34,572 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:29:34,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:29:34,823 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:29:34,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34 WrapperNode [2020-10-29 07:29:34,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:29:34,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:29:34,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:29:34,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:29:34,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (1/1) ... [2020-10-29 07:29:34,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (1/1) ... [2020-10-29 07:29:34,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (1/1) ... [2020-10-29 07:29:34,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (1/1) ... [2020-10-29 07:29:34,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (1/1) ... [2020-10-29 07:29:34,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (1/1) ... [2020-10-29 07:29:34,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (1/1) ... [2020-10-29 07:29:34,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:29:34,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:29:34,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:29:34,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:29:34,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (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 07:29:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:29:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:29:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:29:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:29:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:29:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:29:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:29:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:29:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:29:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:29:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:29:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:29:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:29:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:29:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:29:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:29:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:29:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:29:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:29:36,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:29:36,576 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:29:36,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:29:36 BoogieIcfgContainer [2020-10-29 07:29:36,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:29:36,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:29:36,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:29:36,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:29:36,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:29:33" (1/3) ... [2020-10-29 07:29:36,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f38011e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:29:36, skipping insertion in model container [2020-10-29 07:29:36,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:29:34" (2/3) ... [2020-10-29 07:29:36,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f38011e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:29:36, skipping insertion in model container [2020-10-29 07:29:36,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:29:36" (3/3) ... [2020-10-29 07:29:36,589 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2020-10-29 07:29:36,601 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:29:36,607 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:29:36,622 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:29:36,654 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:29:36,654 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:29:36,655 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:29:36,655 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:29:36,655 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:29:36,655 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:29:36,655 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:29:36,655 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:29:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-29 07:29:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 07:29:36,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:36,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:29:36,694 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:36,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:36,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1399507530, now seen corresponding path program 1 times [2020-10-29 07:29:36,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:36,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663769796] [2020-10-29 07:29:36,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:36,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:37,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:37,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 07:29:37,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:37,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-29 07:29:37,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:37,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:29:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:29:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 07:29:37,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:29:37,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:37,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:37,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:37,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:37,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:37,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:29:37,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:37,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:29:37,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:37,846 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 07:29:37,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663769796] [2020-10-29 07:29:37,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:29:37,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:29:37,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095520721] [2020-10-29 07:29:37,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:29:37,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:37,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:29:37,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:29:37,885 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-29 07:29:40,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:40,731 INFO L93 Difference]: Finished difference Result 719 states and 1262 transitions. [2020-10-29 07:29:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:29:40,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-29 07:29:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:40,760 INFO L225 Difference]: With dead ends: 719 [2020-10-29 07:29:40,760 INFO L226 Difference]: Without dead ends: 381 [2020-10-29 07:29:40,769 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 07:29:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-29 07:29:40,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-29 07:29:40,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-29 07:29:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 529 transitions. [2020-10-29 07:29:40,902 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 529 transitions. Word has length 63 [2020-10-29 07:29:40,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:40,903 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 529 transitions. [2020-10-29 07:29:40,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:29:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 529 transitions. [2020-10-29 07:29:40,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-29 07:29:40,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:40,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:40,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:29:40,911 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:40,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:40,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1023927035, now seen corresponding path program 1 times [2020-10-29 07:29:40,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:40,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594221386] [2020-10-29 07:29:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:41,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:41,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:41,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:43,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:43,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 07:29:43,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:29:43,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2471 [2020-10-29 07:29:43,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:43,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:43,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:29:43,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:29:43,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 07:29:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:29:43,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:43,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:43,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:43,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:43,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:29:43,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:43,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:43,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:43,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:29:43,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:29:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:43,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-29 07:29:43,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:43,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:29:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:29:43,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594221386] [2020-10-29 07:29:43,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:29:43,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:29:43,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154565020] [2020-10-29 07:29:43,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:29:43,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:43,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:29:43,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:29:43,976 INFO L87 Difference]: Start difference. First operand 377 states and 529 transitions. Second operand 7 states. [2020-10-29 07:29:46,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:46,612 INFO L93 Difference]: Finished difference Result 1140 states and 1629 transitions. [2020-10-29 07:29:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:29:46,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-10-29 07:29:46,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:46,624 INFO L225 Difference]: With dead ends: 1140 [2020-10-29 07:29:46,625 INFO L226 Difference]: Without dead ends: 769 [2020-10-29 07:29:46,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:29:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-29 07:29:46,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 751. [2020-10-29 07:29:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-29 07:29:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 990 transitions. [2020-10-29 07:29:46,675 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 990 transitions. Word has length 146 [2020-10-29 07:29:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:46,676 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 990 transitions. [2020-10-29 07:29:46,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:29:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 990 transitions. [2020-10-29 07:29:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-29 07:29:46,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:46,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:29:46,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:29:46,686 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:46,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:46,686 INFO L82 PathProgramCache]: Analyzing trace with hash -441856086, now seen corresponding path program 1 times [2020-10-29 07:29:46,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:46,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142374680] [2020-10-29 07:29:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:46,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:46,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:47,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:47,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:51,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:51,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-29 07:29:51,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:29:51,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 07:29:51,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:51,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:51,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:51,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-29 07:29:51,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:29:51,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:51,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:51,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:51,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:51,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:51,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:51,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:29:51,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:51,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:51,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:51,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:52,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:52,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:29:52,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 07:29:52,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:52,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 07:29:52,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:52,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 07:29:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:52,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:52,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:52,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:29:52,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:52,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 07:29:52,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:52,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:29:52,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:29:52,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142374680] [2020-10-29 07:29:52,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:29:52,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:29:52,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120761029] [2020-10-29 07:29:52,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:29:52,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:52,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:29:52,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:29:52,552 INFO L87 Difference]: Start difference. First operand 751 states and 990 transitions. Second operand 7 states. [2020-10-29 07:29:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:55,254 INFO L93 Difference]: Finished difference Result 1886 states and 2549 transitions. [2020-10-29 07:29:55,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:29:55,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-29 07:29:55,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:55,270 INFO L225 Difference]: With dead ends: 1886 [2020-10-29 07:29:55,270 INFO L226 Difference]: Without dead ends: 955 [2020-10-29 07:29:55,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:29:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-10-29 07:29:55,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 937. [2020-10-29 07:29:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2020-10-29 07:29:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1066 transitions. [2020-10-29 07:29:55,325 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1066 transitions. Word has length 219 [2020-10-29 07:29:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:55,326 INFO L481 AbstractCegarLoop]: Abstraction has 937 states and 1066 transitions. [2020-10-29 07:29:55,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:29:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1066 transitions. [2020-10-29 07:29:55,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-29 07:29:55,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:55,346 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:29:55,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:29:55,347 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:55,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:55,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1729556302, now seen corresponding path program 1 times [2020-10-29 07:29:55,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:55,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994630201] [2020-10-29 07:29:55,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:55,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:55,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:55,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:00,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:00,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-29 07:30:00,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:30:00,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:30:00,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:00,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:30:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:30:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 07:30:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:00,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:00,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:00,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:00,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:00,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:00,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:30:00,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:00,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:30:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:00,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:00,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:00,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:00,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-29 07:30:00,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:00,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 07:30:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:00,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:30:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:00,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:00,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:00,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:30:00,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:30:00,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:00,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:00,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:00,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 07:30:00,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:00,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 110 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 07:30:01,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994630201] [2020-10-29 07:30:01,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:01,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:30:01,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047339026] [2020-10-29 07:30:01,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:30:01,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:01,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:30:01,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:30:01,108 INFO L87 Difference]: Start difference. First operand 937 states and 1066 transitions. Second operand 8 states. [2020-10-29 07:30:03,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:03,822 INFO L93 Difference]: Finished difference Result 2808 states and 3225 transitions. [2020-10-29 07:30:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:30:03,823 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 245 [2020-10-29 07:30:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:03,832 INFO L225 Difference]: With dead ends: 2808 [2020-10-29 07:30:03,832 INFO L226 Difference]: Without dead ends: 1685 [2020-10-29 07:30:03,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:30:03,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2020-10-29 07:30:03,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1681. [2020-10-29 07:30:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2020-10-29 07:30:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 1833 transitions. [2020-10-29 07:30:03,890 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 1833 transitions. Word has length 245 [2020-10-29 07:30:03,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:03,891 INFO L481 AbstractCegarLoop]: Abstraction has 1681 states and 1833 transitions. [2020-10-29 07:30:03,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:30:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 1833 transitions. [2020-10-29 07:30:03,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-29 07:30:03,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:03,899 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:03,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:30:03,900 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:03,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:03,901 INFO L82 PathProgramCache]: Analyzing trace with hash 250083954, now seen corresponding path program 1 times [2020-10-29 07:30:03,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:03,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544012774] [2020-10-29 07:30:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:04,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:04,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:04,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:08,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 389 [2020-10-29 07:30:09,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:30:09,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 07:30:09,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-29 07:30:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:30:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:09,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:09,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:30:09,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:09,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:30:09,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:30:09,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 07:30:09,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:30:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:30:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:09,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-29 07:30:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:30:10,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544012774] [2020-10-29 07:30:10,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:10,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:30:10,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380225160] [2020-10-29 07:30:10,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:30:10,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:10,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:30:10,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:30:10,194 INFO L87 Difference]: Start difference. First operand 1681 states and 1833 transitions. Second operand 7 states. [2020-10-29 07:30:12,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:12,587 INFO L93 Difference]: Finished difference Result 3748 states and 4141 transitions. [2020-10-29 07:30:12,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:30:12,591 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 375 [2020-10-29 07:30:12,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:12,604 INFO L225 Difference]: With dead ends: 3748 [2020-10-29 07:30:12,605 INFO L226 Difference]: Without dead ends: 2069 [2020-10-29 07:30:12,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:30:12,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2020-10-29 07:30:12,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 2065. [2020-10-29 07:30:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-10-29 07:30:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2245 transitions. [2020-10-29 07:30:12,681 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2245 transitions. Word has length 375 [2020-10-29 07:30:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:12,683 INFO L481 AbstractCegarLoop]: Abstraction has 2065 states and 2245 transitions. [2020-10-29 07:30:12,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:30:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2245 transitions. [2020-10-29 07:30:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-10-29 07:30:12,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:12,700 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:12,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:30:12,701 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1311800947, now seen corresponding path program 1 times [2020-10-29 07:30:12,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:12,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583283910] [2020-10-29 07:30:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:12,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:13,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:13,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:13,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:17,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:17,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:17,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 568 [2020-10-29 07:30:17,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:30:17,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-29 07:30:17,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:17,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-29 07:30:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:18,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:18,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:18,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:18,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:18,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:30:18,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:18,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:18,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:18,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:18,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:30:18,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:18,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 07:30:18,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:18,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:30:18,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:18,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:30:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:18,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:18,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:18,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:30:18,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:18,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 07:30:18,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:18,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:18,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:18,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:18,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:30:18,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:18,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-29 07:30:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:18,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:18,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:18,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:18,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:18,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-29 07:30:18,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:18,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:30:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:19,441 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 299 proven. 176 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-29 07:30:19,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583283910] [2020-10-29 07:30:19,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:19,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:30:19,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661023450] [2020-10-29 07:30:19,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:30:19,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:19,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:30:19,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:30:19,445 INFO L87 Difference]: Start difference. First operand 2065 states and 2245 transitions. Second operand 8 states. [2020-10-29 07:30:22,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:22,859 INFO L93 Difference]: Finished difference Result 5062 states and 5615 transitions. [2020-10-29 07:30:22,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:30:22,862 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 552 [2020-10-29 07:30:22,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:22,879 INFO L225 Difference]: With dead ends: 5062 [2020-10-29 07:30:22,880 INFO L226 Difference]: Without dead ends: 2985 [2020-10-29 07:30:22,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:30:22,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2020-10-29 07:30:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2801. [2020-10-29 07:30:22,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2801 states. [2020-10-29 07:30:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3067 transitions. [2020-10-29 07:30:22,993 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3067 transitions. Word has length 552 [2020-10-29 07:30:22,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:22,993 INFO L481 AbstractCegarLoop]: Abstraction has 2801 states and 3067 transitions. [2020-10-29 07:30:22,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:30:22,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3067 transitions. [2020-10-29 07:30:23,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2020-10-29 07:30:23,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:23,002 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:23,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:30:23,002 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:23,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:23,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1691862260, now seen corresponding path program 1 times [2020-10-29 07:30:23,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:23,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815326241] [2020-10-29 07:30:23,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:23,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:23,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:24,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:28,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:28,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 596 [2020-10-29 07:30:28,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:30:28,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 07:30:28,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:28,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:30:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:30:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 07:30:28,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:28,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:28,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:28,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:28,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:28,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:28,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:30:28,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:28,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:28,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:28,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:28,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:28,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:28,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:28,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:30:28,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:28,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:28,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:28,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:28,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:28,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:28,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 07:30:28,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:28,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:30:28,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:28,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:28,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:28,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:30:28,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-29 07:30:28,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:28,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 07:30:28,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:28,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:30:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:28,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:28,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:28,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:28,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:28,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-29 07:30:28,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:28,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:28,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:28,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 763 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 07:30:29,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815326241] [2020-10-29 07:30:29,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:29,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:30:29,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529187199] [2020-10-29 07:30:29,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:30:29,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:30:29,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:30:29,446 INFO L87 Difference]: Start difference. First operand 2801 states and 3067 transitions. Second operand 8 states. [2020-10-29 07:30:31,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:31,470 INFO L93 Difference]: Finished difference Result 6546 states and 7273 transitions. [2020-10-29 07:30:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:30:31,476 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 578 [2020-10-29 07:30:31,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:31,495 INFO L225 Difference]: With dead ends: 6546 [2020-10-29 07:30:31,496 INFO L226 Difference]: Without dead ends: 3933 [2020-10-29 07:30:31,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-29 07:30:31,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2020-10-29 07:30:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3741. [2020-10-29 07:30:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3741 states. [2020-10-29 07:30:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4107 transitions. [2020-10-29 07:30:31,628 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4107 transitions. Word has length 578 [2020-10-29 07:30:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:31,630 INFO L481 AbstractCegarLoop]: Abstraction has 3741 states and 4107 transitions. [2020-10-29 07:30:31,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:30:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4107 transitions. [2020-10-29 07:30:31,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2020-10-29 07:30:31,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:31,638 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:30:31,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:30:31,639 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:31,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:31,639 INFO L82 PathProgramCache]: Analyzing trace with hash 66034196, now seen corresponding path program 1 times [2020-10-29 07:30:31,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:31,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797734441] [2020-10-29 07:30:31,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:31,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:32,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:36,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:36,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 656 [2020-10-29 07:30:36,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:30:36,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-29 07:30:36,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:36,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:36,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:36,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:30:36,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:36,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:36,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:36,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:36,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:36,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:36,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:36,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:30:36,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:36,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:36,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:36,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:37,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 07:30:37,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:30:37,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:37,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:30:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-29 07:30:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:37,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 07:30:37,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:30:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 446 proven. 176 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-29 07:30:37,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797734441] [2020-10-29 07:30:37,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:37,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:30:37,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664256097] [2020-10-29 07:30:37,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:30:37,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:37,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:30:37,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:30:37,938 INFO L87 Difference]: Start difference. First operand 3741 states and 4107 transitions. Second operand 8 states. [2020-10-29 07:30:40,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:40,885 INFO L93 Difference]: Finished difference Result 7498 states and 8292 transitions. [2020-10-29 07:30:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:30:40,886 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 638 [2020-10-29 07:30:40,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:40,906 INFO L225 Difference]: With dead ends: 7498 [2020-10-29 07:30:40,906 INFO L226 Difference]: Without dead ends: 3945 [2020-10-29 07:30:40,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:30:40,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2020-10-29 07:30:41,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3933. [2020-10-29 07:30:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3933 states. [2020-10-29 07:30:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 4287 transitions. [2020-10-29 07:30:41,026 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 4287 transitions. Word has length 638 [2020-10-29 07:30:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:41,027 INFO L481 AbstractCegarLoop]: Abstraction has 3933 states and 4287 transitions. [2020-10-29 07:30:41,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:30:41,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 4287 transitions. [2020-10-29 07:30:41,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2020-10-29 07:30:41,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:41,037 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 07:30:41,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:30:41,038 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:41,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1657918423, now seen corresponding path program 1 times [2020-10-29 07:30:41,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:41,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735349779] [2020-10-29 07:30:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:41,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:41,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:43,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 757 [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:30:46,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:30:46,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:46,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:30:46,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:46,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:30:46,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:46,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:30:46,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:30:46,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:30:46,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:30:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:30:46,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-29 07:30:46,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:30:46,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:30:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:47,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 773 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-29 07:30:47,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735349779] [2020-10-29 07:30:47,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:47,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:30:47,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323245289] [2020-10-29 07:30:47,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:30:47,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:47,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:30:47,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:30:47,470 INFO L87 Difference]: Start difference. First operand 3933 states and 4287 transitions. Second operand 7 states. [2020-10-29 07:30:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:49,809 INFO L93 Difference]: Finished difference Result 8610 states and 9497 transitions. [2020-10-29 07:30:49,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:30:49,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 737 [2020-10-29 07:30:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:49,836 INFO L225 Difference]: With dead ends: 8610 [2020-10-29 07:30:49,837 INFO L226 Difference]: Without dead ends: 4681 [2020-10-29 07:30:49,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:30:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2020-10-29 07:30:49,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 4673. [2020-10-29 07:30:49,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4673 states. [2020-10-29 07:30:49,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4673 states to 4673 states and 5157 transitions. [2020-10-29 07:30:49,977 INFO L78 Accepts]: Start accepts. Automaton has 4673 states and 5157 transitions. Word has length 737 [2020-10-29 07:30:49,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:49,978 INFO L481 AbstractCegarLoop]: Abstraction has 4673 states and 5157 transitions. [2020-10-29 07:30:49,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:30:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4673 states and 5157 transitions. [2020-10-29 07:30:49,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2020-10-29 07:30:49,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:49,990 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:49,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:30:49,990 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:49,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:49,991 INFO L82 PathProgramCache]: Analyzing trace with hash -86713006, now seen corresponding path program 1 times [2020-10-29 07:30:49,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:49,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836627271] [2020-10-29 07:30:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:50,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:50,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:52,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:52,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 835 [2020-10-29 07:30:52,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:30:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2448 [2020-10-29 07:30:52,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:52,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 770 [2020-10-29 07:30:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 07:30:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:52,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:52,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:52,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:52,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:52,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:30:52,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:52,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:52,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:52,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:52,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:52,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:52,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:52,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:30:52,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:52,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:52,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:52,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:52,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:52,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:52,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:52,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:52,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:52,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:52,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:52,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:30:52,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:52,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:52,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:52,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:52,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:52,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:52,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:52,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:30:52,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:52,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:30:52,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:52,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:52,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:52,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:30:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:52,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:53,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:53,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:30:53,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:53,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 07:30:53,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:53,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:53,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:53,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:53,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:53,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:53,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:30:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:53,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:53,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:53,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:30:53,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:53,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:30:53,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:53,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:53,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:30:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:53,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:53,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:53,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:53,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:53,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 07:30:53,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:53,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-29 07:30:53,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1869 backedges. 339 proven. 6 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-29 07:30:53,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836627271] [2020-10-29 07:30:53,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:53,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:30:53,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008461485] [2020-10-29 07:30:53,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:30:53,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:53,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:30:53,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:30:53,615 INFO L87 Difference]: Start difference. First operand 4673 states and 5157 transitions. Second operand 5 states. [2020-10-29 07:30:55,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:55,243 INFO L93 Difference]: Finished difference Result 10620 states and 11903 transitions. [2020-10-29 07:30:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:30:55,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 813 [2020-10-29 07:30:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:55,270 INFO L225 Difference]: With dead ends: 10620 [2020-10-29 07:30:55,270 INFO L226 Difference]: Without dead ends: 6135 [2020-10-29 07:30:55,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:30:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2020-10-29 07:30:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 5949. [2020-10-29 07:30:55,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5949 states. [2020-10-29 07:30:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5949 states to 5949 states and 6653 transitions. [2020-10-29 07:30:55,433 INFO L78 Accepts]: Start accepts. Automaton has 5949 states and 6653 transitions. Word has length 813 [2020-10-29 07:30:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:55,435 INFO L481 AbstractCegarLoop]: Abstraction has 5949 states and 6653 transitions. [2020-10-29 07:30:55,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:30:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5949 states and 6653 transitions. [2020-10-29 07:30:55,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2020-10-29 07:30:55,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:55,451 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:30:55,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:30:55,451 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:55,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:55,452 INFO L82 PathProgramCache]: Analyzing trace with hash 257334171, now seen corresponding path program 1 times [2020-10-29 07:30:55,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:55,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667374097] [2020-10-29 07:30:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:56,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:56,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:57,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:00,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:00,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 931 [2020-10-29 07:31:00,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:31:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-29 07:31:00,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:00,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 07:31:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-29 07:31:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-29 07:31:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:00,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:00,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:00,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:00,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:31:00,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:00,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:00,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:00,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:00,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:00,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:31:00,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:00,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:01,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:01,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:01,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:01,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:01,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:31:01,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:01,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:01,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:01,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:01,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:01,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:01,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:31:01,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:01,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:01,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:01,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:01,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:01,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:31:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:31:01,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:01,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:01,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:31:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:01,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:01,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:01,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:01,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 07:31:01,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:01,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:31:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:01,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:31:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:01,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:01,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:01,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:01,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:01,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-29 07:31:01,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:01,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:01,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:31:01,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:31:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:01,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:31:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:01,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:01,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:01,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:31:01,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 07:31:01,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:01,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 07:31:01,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2470 backedges. 1410 proven. 6 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2020-10-29 07:31:02,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667374097] [2020-10-29 07:31:02,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:02,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:31:02,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890319149] [2020-10-29 07:31:02,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:31:02,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:02,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:31:02,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:31:02,211 INFO L87 Difference]: Start difference. First operand 5949 states and 6653 transitions. Second operand 9 states. [2020-10-29 07:31:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:05,960 INFO L93 Difference]: Finished difference Result 13379 states and 15137 transitions. [2020-10-29 07:31:05,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 07:31:05,966 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 907 [2020-10-29 07:31:05,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:05,997 INFO L225 Difference]: With dead ends: 13379 [2020-10-29 07:31:05,997 INFO L226 Difference]: Without dead ends: 7618 [2020-10-29 07:31:06,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-29 07:31:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2020-10-29 07:31:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 7423. [2020-10-29 07:31:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7423 states. [2020-10-29 07:31:06,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7423 states to 7423 states and 8402 transitions. [2020-10-29 07:31:06,178 INFO L78 Accepts]: Start accepts. Automaton has 7423 states and 8402 transitions. Word has length 907 [2020-10-29 07:31:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:06,180 INFO L481 AbstractCegarLoop]: Abstraction has 7423 states and 8402 transitions. [2020-10-29 07:31:06,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:31:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7423 states and 8402 transitions. [2020-10-29 07:31:06,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2020-10-29 07:31:06,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:06,199 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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:06,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 07:31:06,200 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:06,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:06,201 INFO L82 PathProgramCache]: Analyzing trace with hash 759630876, now seen corresponding path program 1 times [2020-10-29 07:31:06,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:06,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339539105] [2020-10-29 07:31:06,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:06,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:06,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:07,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:11,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:11,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1090 [2020-10-29 07:31:11,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:31:11,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-29 07:31:11,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:11,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 07:31:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-29 07:31:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-29 07:31:11,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:11,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:11,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:11,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:11,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:11,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:11,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:11,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:11,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:11,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:11,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:11,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:31:11,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:11,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:11,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:11,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:11,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:11,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:11,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:11,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:11,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:31:11,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:11,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:11,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:11,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:11,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:11,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:11,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:11,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:11,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:11,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:11,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:11,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:31:11,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:11,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:31:11,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:11,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:11,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:31:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:12,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:12,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:12,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:12,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:31:12,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:12,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:31:12,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:12,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:31:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:12,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:12,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:12,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:12,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:12,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-29 07:31:12,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:12,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:31:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:31:12,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:31:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:12,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:12,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:12,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 07:31:12,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:13,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 898 [2020-10-29 07:31:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:13,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:31:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:13,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 1722 proven. 220 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2020-10-29 07:31:14,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339539105] [2020-10-29 07:31:14,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:14,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:31:14,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828411573] [2020-10-29 07:31:14,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:31:14,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:14,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:31:14,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:31:14,157 INFO L87 Difference]: Start difference. First operand 7423 states and 8402 transitions. Second operand 11 states. [2020-10-29 07:31:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:18,687 INFO L93 Difference]: Finished difference Result 14875 states and 16846 transitions. [2020-10-29 07:31:18,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 07:31:18,690 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1064 [2020-10-29 07:31:18,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:18,714 INFO L225 Difference]: With dead ends: 14875 [2020-10-29 07:31:18,714 INFO L226 Difference]: Without dead ends: 7640 [2020-10-29 07:31:18,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2020-10-29 07:31:18,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2020-10-29 07:31:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 7627. [2020-10-29 07:31:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7627 states. [2020-10-29 07:31:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 8613 transitions. [2020-10-29 07:31:18,910 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 8613 transitions. Word has length 1064 [2020-10-29 07:31:18,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:18,912 INFO L481 AbstractCegarLoop]: Abstraction has 7627 states and 8613 transitions. [2020-10-29 07:31:18,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:31:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 8613 transitions. [2020-10-29 07:31:18,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1126 [2020-10-29 07:31:18,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:18,938 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, 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, 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, 6, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 07:31:18,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 07:31:18,938 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:18,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:18,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1354551709, now seen corresponding path program 1 times [2020-10-29 07:31:18,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:18,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060188226] [2020-10-29 07:31:18,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:19,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:21,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1153 [2020-10-29 07:31:24,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:31:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-29 07:31:24,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:31:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-29 07:31:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 387 [2020-10-29 07:31:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:24,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:24,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:24,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:31:24,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:31:24,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:31:24,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:24,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:24,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:24,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:31:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:24,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:31:24,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:31:24,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:31:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:25,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:25,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:25,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:25,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 07:31:25,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:25,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:25,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:31:25,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:25,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:31:25,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:25,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:31:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:25,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:25,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:25,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:31:25,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:25,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 07:31:25,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:25,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:25,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:31:25,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:25,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 876 [2020-10-29 07:31:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:25,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:25,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:31:25,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 07:31:25,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:25,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:25,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:25,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:25,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:31:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 959 [2020-10-29 07:31:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:25,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:25,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:25,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:31:25,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:25,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 07:31:25,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:25,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:31:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:31:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 2142 proven. 456 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2020-10-29 07:31:26,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060188226] [2020-10-29 07:31:26,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:26,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:31:26,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579736994] [2020-10-29 07:31:26,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:31:26,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:26,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:31:26,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:31:26,992 INFO L87 Difference]: Start difference. First operand 7627 states and 8613 transitions. Second operand 11 states. [2020-10-29 07:31:27,156 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 07:31:30,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:30,935 INFO L93 Difference]: Finished difference Result 15259 states and 17247 transitions. [2020-10-29 07:31:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 07:31:30,939 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1125 [2020-10-29 07:31:30,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:30,964 INFO L225 Difference]: With dead ends: 15259 [2020-10-29 07:31:30,964 INFO L226 Difference]: Without dead ends: 7820 [2020-10-29 07:31:30,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-29 07:31:30,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7820 states. [2020-10-29 07:31:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7820 to 7809. [2020-10-29 07:31:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7809 states. [2020-10-29 07:31:31,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7809 states to 7809 states and 8797 transitions. [2020-10-29 07:31:31,138 INFO L78 Accepts]: Start accepts. Automaton has 7809 states and 8797 transitions. Word has length 1125 [2020-10-29 07:31:31,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:31,139 INFO L481 AbstractCegarLoop]: Abstraction has 7809 states and 8797 transitions. [2020-10-29 07:31:31,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:31:31,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7809 states and 8797 transitions. [2020-10-29 07:31:31,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1183 [2020-10-29 07:31:31,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:31,158 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, 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, 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, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:31,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 07:31:31,158 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:31,159 INFO L82 PathProgramCache]: Analyzing trace with hash 284865795, now seen corresponding path program 1 times [2020-10-29 07:31:31,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:31,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151270529] [2020-10-29 07:31:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:31,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:32,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:34,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1210 [2020-10-29 07:31:36,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:31:36,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 07:31:36,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:36,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1032 [2020-10-29 07:31:36,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 07:31:36,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:36,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:31:36,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:36,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:31:36,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:36,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:31:36,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:36,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:31:36,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:31:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:31:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:31:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:31:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:36,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:31:36,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:37,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:31:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:37,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:31:37,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:37,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:31:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:37,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:37,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 876 [2020-10-29 07:31:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:37,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:37,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:37,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:31:37,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 07:31:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:37,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:31:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:37,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2020-10-29 07:31:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:37,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:37,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:31:37,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4342 backedges. 1356 proven. 2 refuted. 0 times theorem prover too weak. 2984 trivial. 0 not checked. [2020-10-29 07:31:38,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151270529] [2020-10-29 07:31:38,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:38,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:31:38,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713245327] [2020-10-29 07:31:38,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:31:38,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:38,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:31:38,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:31:38,210 INFO L87 Difference]: Start difference. First operand 7809 states and 8797 transitions. Second operand 7 states. [2020-10-29 07:31:40,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:40,147 INFO L93 Difference]: Finished difference Result 16904 states and 19202 transitions. [2020-10-29 07:31:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:31:40,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1182 [2020-10-29 07:31:40,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:40,185 INFO L225 Difference]: With dead ends: 16904 [2020-10-29 07:31:40,185 INFO L226 Difference]: Without dead ends: 9097 [2020-10-29 07:31:40,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:31:40,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9097 states. [2020-10-29 07:31:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9097 to 9095. [2020-10-29 07:31:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9095 states. [2020-10-29 07:31:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9095 states to 9095 states and 10220 transitions. [2020-10-29 07:31:40,386 INFO L78 Accepts]: Start accepts. Automaton has 9095 states and 10220 transitions. Word has length 1182 [2020-10-29 07:31:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:40,387 INFO L481 AbstractCegarLoop]: Abstraction has 9095 states and 10220 transitions. [2020-10-29 07:31:40,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:31:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 9095 states and 10220 transitions. [2020-10-29 07:31:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2020-10-29 07:31:40,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:40,412 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:31:40,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 07:31:40,413 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:40,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:40,413 INFO L82 PathProgramCache]: Analyzing trace with hash -534155388, now seen corresponding path program 1 times [2020-10-29 07:31:40,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:40,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997742444] [2020-10-29 07:31:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:40,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:41,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:42,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:43,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:45,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:45,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1341 [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:31:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:45,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:45,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:45,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:45,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:45,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:45,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:45,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:31:45,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:45,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:45,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:45,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:46,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:31:46,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 07:31:46,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-29 07:31:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:31:46,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 07:31:46,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:31:46,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-29 07:31:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-29 07:31:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:46,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 07:31:46,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:31:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-29 07:31:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-29 07:31:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 887 [2020-10-29 07:31:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:31:46,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:31:46,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-29 07:31:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1027 [2020-10-29 07:31:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1145 [2020-10-29 07:31:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5374 backedges. 952 proven. 724 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2020-10-29 07:31:47,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997742444] [2020-10-29 07:31:47,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:47,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:31:47,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402151638] [2020-10-29 07:31:47,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:31:47,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:47,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:31:47,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:31:47,849 INFO L87 Difference]: Start difference. First operand 9095 states and 10220 transitions. Second operand 7 states. [2020-10-29 07:31:49,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:49,971 INFO L93 Difference]: Finished difference Result 18372 states and 20646 transitions. [2020-10-29 07:31:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:31:49,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1311 [2020-10-29 07:31:49,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:50,001 INFO L225 Difference]: With dead ends: 18372 [2020-10-29 07:31:50,001 INFO L226 Difference]: Without dead ends: 9465 [2020-10-29 07:31:50,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:31:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9465 states. [2020-10-29 07:31:50,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9465 to 8913. [2020-10-29 07:31:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8913 states. [2020-10-29 07:31:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8913 states to 8913 states and 10026 transitions. [2020-10-29 07:31:50,203 INFO L78 Accepts]: Start accepts. Automaton has 8913 states and 10026 transitions. Word has length 1311 [2020-10-29 07:31:50,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:50,204 INFO L481 AbstractCegarLoop]: Abstraction has 8913 states and 10026 transitions. [2020-10-29 07:31:50,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:31:50,204 INFO L276 IsEmpty]: Start isEmpty. Operand 8913 states and 10026 transitions. [2020-10-29 07:31:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1464 [2020-10-29 07:31:50,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:50,234 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 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, 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, 7, 6, 6, 6, 6, 6, 6, 5, 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, 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 07:31:50,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 07:31:50,234 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:50,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:50,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1589993205, now seen corresponding path program 1 times [2020-10-29 07:31:50,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:50,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077914401] [2020-10-29 07:31:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:50,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:51,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1495 [2020-10-29 07:31:53,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:31:53,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2780 [2020-10-29 07:31:53,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-29 07:31:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 07:31:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:53,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:53,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:53,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:31:53,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:53,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:31:53,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:31:53,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:31:53,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:31:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:31:53,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:31:53,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:31:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:31:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:31:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:53,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:53,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:31:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:53,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:54,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:54,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:31:54,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:54,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:31:54,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:54,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:54,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:54,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:31:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:54,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:54,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:54,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:31:54,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:31:54,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:54,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:54,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:31:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:54,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:54,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:54,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:31:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:31:54,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:54,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:31:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6412 backedges. 624 proven. 11 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2020-10-29 07:31:55,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077914401] [2020-10-29 07:31:55,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:55,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:31:55,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350067623] [2020-10-29 07:31:55,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:31:55,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:55,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:31:55,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:31:55,466 INFO L87 Difference]: Start difference. First operand 8913 states and 10026 transitions. Second operand 5 states. [2020-10-29 07:31:56,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:56,894 INFO L93 Difference]: Finished difference Result 9828 states and 11163 transitions. [2020-10-29 07:31:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:31:56,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1463 [2020-10-29 07:31:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:56,920 INFO L225 Difference]: With dead ends: 9828 [2020-10-29 07:31:56,921 INFO L226 Difference]: Without dead ends: 9825 [2020-10-29 07:31:56,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:31:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9825 states. [2020-10-29 07:31:57,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9825 to 9095. [2020-10-29 07:31:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9095 states. [2020-10-29 07:31:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9095 states to 9095 states and 10250 transitions. [2020-10-29 07:31:57,088 INFO L78 Accepts]: Start accepts. Automaton has 9095 states and 10250 transitions. Word has length 1463 [2020-10-29 07:31:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:57,090 INFO L481 AbstractCegarLoop]: Abstraction has 9095 states and 10250 transitions. [2020-10-29 07:31:57,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:31:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 9095 states and 10250 transitions. [2020-10-29 07:31:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2020-10-29 07:31:57,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:57,124 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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 07:31:57,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 07:31:57,124 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:57,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash -11323810, now seen corresponding path program 1 times [2020-10-29 07:31:57,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:57,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020345759] [2020-10-29 07:31:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:57,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:58,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:58,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1639 [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5109 [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:02,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-29 07:32:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 07:32:02,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:02,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:32:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:02,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:02,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:02,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:32:02,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:32:02,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:02,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:02,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:02,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:02,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:32:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:02,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:02,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:32:02,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:02,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:32:02,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:02,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:02,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:02,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:32:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:02,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:02,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:02,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:02,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:32:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:02,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:02,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:02,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:32:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:02,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:02,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:02,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:32:02,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:02,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:02,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:02,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:02,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:02,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:32:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:02,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:02,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:02,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:32:02,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:32:02,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:02,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:02,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:03,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:32:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:03,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:03,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:03,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:32:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:03,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:03,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:03,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:32:03,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:32:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:03,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:32:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:03,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:03,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:32:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:03,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:03,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:03,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:32:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:03,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:03,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:32:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:03,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:03,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:32:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:32:03,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:03,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:32:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:32:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:03,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-29 07:32:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:03,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:03,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:32:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 07:32:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:03,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:32:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 07:32:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 1965 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-29 07:32:04,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020345759] [2020-10-29 07:32:04,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:32:04,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:32:04,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587638377] [2020-10-29 07:32:04,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:32:04,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:32:04,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:32:04,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:32:04,978 INFO L87 Difference]: Start difference. First operand 9095 states and 10250 transitions. Second operand 7 states. [2020-10-29 07:32:06,100 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 07:32:07,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:32:07,245 INFO L93 Difference]: Finished difference Result 19124 states and 21698 transitions. [2020-10-29 07:32:07,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:32:07,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1605 [2020-10-29 07:32:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:32:07,266 INFO L225 Difference]: With dead ends: 19124 [2020-10-29 07:32:07,266 INFO L226 Difference]: Without dead ends: 6711 [2020-10-29 07:32:07,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:32:07,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2020-10-29 07:32:07,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6673. [2020-10-29 07:32:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6673 states. [2020-10-29 07:32:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6673 states to 6673 states and 7190 transitions. [2020-10-29 07:32:07,407 INFO L78 Accepts]: Start accepts. Automaton has 6673 states and 7190 transitions. Word has length 1605 [2020-10-29 07:32:07,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:32:07,409 INFO L481 AbstractCegarLoop]: Abstraction has 6673 states and 7190 transitions. [2020-10-29 07:32:07,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:32:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6673 states and 7190 transitions. [2020-10-29 07:32:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1607 [2020-10-29 07:32:07,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:32:07,455 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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 07:32:07,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 07:32:07,456 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:32:07,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:32:07,457 INFO L82 PathProgramCache]: Analyzing trace with hash 875591060, now seen corresponding path program 1 times [2020-10-29 07:32:07,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:32:07,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771850140] [2020-10-29 07:32:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:32:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:07,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:08,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:12,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:12,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1640 [2020-10-29 07:32:12,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:32:12,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-29 07:32:12,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:12,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:12,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:32:12,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-29 07:32:12,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 299 [2020-10-29 07:32:12,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:32:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:32:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:32:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:32:13,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:32:13,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:32:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:32:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:32:13,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:13,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:32:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:32:13,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:32:13,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:32:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:32:13,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:32:13,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:32:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:32:13,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:32:13,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:32:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:32:13,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:13,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:13,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:32:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:32:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:32:13,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:13,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:32:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:13,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:13,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:13,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:32:13,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-29 07:32:13,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:13,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:32:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 07:32:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:14,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:32:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:14,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:14,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:14,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:32:14,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:14,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 07:32:14,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:14,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:14,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:14,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:32:14,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:32:14,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1409 [2020-10-29 07:32:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:14,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:14,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:32:14,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 07:32:14,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:14,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:32:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7762 backedges. 2745 proven. 357 refuted. 0 times theorem prover too weak. 4660 trivial. 0 not checked. [2020-10-29 07:32:16,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771850140] [2020-10-29 07:32:16,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:32:16,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:32:16,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620086768] [2020-10-29 07:32:16,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:32:16,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:32:16,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:32:16,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:32:16,173 INFO L87 Difference]: Start difference. First operand 6673 states and 7190 transitions. Second operand 8 states. [2020-10-29 07:32:18,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:32:18,102 INFO L93 Difference]: Finished difference Result 13904 states and 15010 transitions. [2020-10-29 07:32:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:32:18,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1606 [2020-10-29 07:32:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:32:18,127 INFO L225 Difference]: With dead ends: 13904 [2020-10-29 07:32:18,128 INFO L226 Difference]: Without dead ends: 7419 [2020-10-29 07:32:18,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-29 07:32:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2020-10-29 07:32:18,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 7225. [2020-10-29 07:32:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7225 states. [2020-10-29 07:32:18,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 7748 transitions. [2020-10-29 07:32:18,290 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 7748 transitions. Word has length 1606 [2020-10-29 07:32:18,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:32:18,291 INFO L481 AbstractCegarLoop]: Abstraction has 7225 states and 7748 transitions. [2020-10-29 07:32:18,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:32:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 7748 transitions. [2020-10-29 07:32:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1608 [2020-10-29 07:32:18,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:32:18,327 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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 07:32:18,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 07:32:18,327 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:32:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:32:18,328 INFO L82 PathProgramCache]: Analyzing trace with hash 50300962, now seen corresponding path program 1 times [2020-10-29 07:32:18,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:32:18,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125394596] [2020-10-29 07:32:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:32:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:19,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:19,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:21,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:23,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:23,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1641 [2020-10-29 07:32:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:32:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-29 07:32:23,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:23,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-29 07:32:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 07:32:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:23,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:32:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:23,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:23,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:23,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:32:23,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:23,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:32:23,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:23,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:23,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:23,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:32:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:32:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:32:24,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:32:24,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:32:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:32:24,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:32:24,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:32:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:32:24,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:32:24,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:32:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:32:24,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:32:24,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:32:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:32:24,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:32:24,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:32:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:32:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:32:24,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:32:24,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:32:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:32:24,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:32:24,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:32:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:32:24,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 07:32:24,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:24,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:32:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:32:24,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 07:32:24,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:32:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 07:32:24,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:24,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:32:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:24,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:24,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 07:32:24,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 7769 backedges. 1967 proven. 2 refuted. 0 times theorem prover too weak. 5800 trivial. 0 not checked. [2020-10-29 07:32:27,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125394596] [2020-10-29 07:32:27,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:32:27,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:32:27,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222005891] [2020-10-29 07:32:27,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:32:27,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:32:27,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:32:27,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:32:27,360 INFO L87 Difference]: Start difference. First operand 7225 states and 7748 transitions. Second operand 8 states. [2020-10-29 07:32:29,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:32:29,640 INFO L93 Difference]: Finished difference Result 14454 states and 15521 transitions. [2020-10-29 07:32:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:32:29,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1607 [2020-10-29 07:32:29,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:32:29,662 INFO L225 Difference]: With dead ends: 14454 [2020-10-29 07:32:29,663 INFO L226 Difference]: Without dead ends: 7417 [2020-10-29 07:32:29,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:32:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7417 states. [2020-10-29 07:32:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7417 to 7409. [2020-10-29 07:32:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7409 states. [2020-10-29 07:32:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7409 states to 7409 states and 7937 transitions. [2020-10-29 07:32:29,807 INFO L78 Accepts]: Start accepts. Automaton has 7409 states and 7937 transitions. Word has length 1607 [2020-10-29 07:32:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:32:29,809 INFO L481 AbstractCegarLoop]: Abstraction has 7409 states and 7937 transitions. [2020-10-29 07:32:29,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:32:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 7409 states and 7937 transitions. [2020-10-29 07:32:29,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1673 [2020-10-29 07:32:29,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:32:29,845 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-29 07:32:29,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 07:32:29,845 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:32:29,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:32:29,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1583822120, now seen corresponding path program 1 times [2020-10-29 07:32:29,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:32:29,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624918825] [2020-10-29 07:32:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:32:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:30,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:31,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:33,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:34,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1706 [2020-10-29 07:32:35,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:32:35,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5142 [2020-10-29 07:32:35,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:35,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-29 07:32:35,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 07:32:35,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:35,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:32:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:35,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:35,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:32:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:32:35,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:35,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:32:35,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:35,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:32:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:35,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:32:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:35,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:32:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:35,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:32:35,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:32:35,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:35,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:35,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:32:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:35,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:32:35,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:35,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:32:35,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:35,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:32:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:35,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:35,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:36,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:32:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:36,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:36,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:32:36,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:36,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:32:36,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:36,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:36,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:36,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:36,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:36,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:36,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:32:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:36,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:36,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:36,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:32:36,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:32:36,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:36,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:36,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:36,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:32:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:36,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:36,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:36,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:32:36,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:36,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:32:36,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:36,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:36,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:36,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:36,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:36,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:32:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:36,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:36,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:36,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:32:36,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:36,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:32:36,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:36,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:36,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:36,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:32:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:36,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:36,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-29 07:32:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:36,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-29 07:32:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:32:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 07:32:36,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8028 backedges. 1996 proven. 2 refuted. 0 times theorem prover too weak. 6030 trivial. 0 not checked. [2020-10-29 07:32:38,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624918825] [2020-10-29 07:32:38,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:32:38,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:32:38,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183115407] [2020-10-29 07:32:38,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:32:38,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:32:38,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:32:38,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:32:38,084 INFO L87 Difference]: Start difference. First operand 7409 states and 7937 transitions. Second operand 7 states. [2020-10-29 07:32:40,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:32:40,150 INFO L93 Difference]: Finished difference Result 13156 states and 14084 transitions. [2020-10-29 07:32:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:32:40,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1672 [2020-10-29 07:32:40,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:32:40,162 INFO L225 Difference]: With dead ends: 13156 [2020-10-29 07:32:40,163 INFO L226 Difference]: Without dead ends: 4639 [2020-10-29 07:32:40,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:32:40,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2020-10-29 07:32:40,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4271. [2020-10-29 07:32:40,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4271 states. [2020-10-29 07:32:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4271 states to 4271 states and 4412 transitions. [2020-10-29 07:32:40,241 INFO L78 Accepts]: Start accepts. Automaton has 4271 states and 4412 transitions. Word has length 1672 [2020-10-29 07:32:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:32:40,243 INFO L481 AbstractCegarLoop]: Abstraction has 4271 states and 4412 transitions. [2020-10-29 07:32:40,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:32:40,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4271 states and 4412 transitions. [2020-10-29 07:32:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1735 [2020-10-29 07:32:40,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:32:40,277 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 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 07:32:40,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 07:32:40,277 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:32:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:32:40,278 INFO L82 PathProgramCache]: Analyzing trace with hash -473248221, now seen corresponding path program 1 times [2020-10-29 07:32:40,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:32:40,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919025501] [2020-10-29 07:32:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:32:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:40,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:42,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1770 [2020-10-29 07:32:43,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:32:43,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2605 [2020-10-29 07:32:43,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1705 [2020-10-29 07:32:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 07:32:43,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:32:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:32:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:32:43,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 07:32:43,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:32:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:32:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:32:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:32:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:32:43,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:32:43,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:32:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:32:43,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:43,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:32:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:32:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:32:43,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:32:43,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:43,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:32:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:43,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:43,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:43,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:32:43,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:43,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:32:43,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:43,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:43,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:43,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:43,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:43,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:44,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:32:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:44,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:44,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:44,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:44,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:32:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:44,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:44,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:44,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:32:44,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:44,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:32:44,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:44,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:44,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:32:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:44,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:44,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:44,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:44,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:32:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:44,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:44,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:32:44,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:44,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:32:44,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:44,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:44,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:44,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:32:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:44,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:44,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:44,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:44,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:44,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-29 07:32:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:44,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:32:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 07:32:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:46,116 INFO L134 CoverageAnalysis]: Checked inductivity of 9183 backedges. 738 proven. 13 refuted. 0 times theorem prover too weak. 8432 trivial. 0 not checked. [2020-10-29 07:32:46,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919025501] [2020-10-29 07:32:46,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:32:46,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 07:32:46,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736299920] [2020-10-29 07:32:46,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 07:32:46,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:32:46,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 07:32:46,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:32:46,120 INFO L87 Difference]: Start difference. First operand 4271 states and 4412 transitions. Second operand 6 states. [2020-10-29 07:32:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:32:47,529 INFO L93 Difference]: Finished difference Result 4458 states and 4599 transitions. [2020-10-29 07:32:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:32:47,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1734 [2020-10-29 07:32:47,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:32:47,542 INFO L225 Difference]: With dead ends: 4458 [2020-10-29 07:32:47,543 INFO L226 Difference]: Without dead ends: 4269 [2020-10-29 07:32:47,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:32:47,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4269 states. [2020-10-29 07:32:47,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4269 to 4267. [2020-10-29 07:32:47,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4267 states. [2020-10-29 07:32:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 4400 transitions. [2020-10-29 07:32:47,616 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 4400 transitions. Word has length 1734 [2020-10-29 07:32:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:32:47,619 INFO L481 AbstractCegarLoop]: Abstraction has 4267 states and 4400 transitions. [2020-10-29 07:32:47,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 07:32:47,619 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 4400 transitions. [2020-10-29 07:32:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1794 [2020-10-29 07:32:47,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:32:47,656 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 7, 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, 4, 4, 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, 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] [2020-10-29 07:32:47,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 07:32:47,656 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:32:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:32:47,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1701513241, now seen corresponding path program 1 times [2020-10-29 07:32:47,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:32:47,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222732417] [2020-10-29 07:32:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:32:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:48,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:48,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:51,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:52,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:52,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1829 [2020-10-29 07:32:52,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:32:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-29 07:32:52,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:52,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-29 07:32:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 07:32:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:32:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:32:53,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:32:53,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:32:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:32:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:32:53,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:32:53,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:32:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:32:53,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:53,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:32:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:32:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:32:53,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:32:53,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:32:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:32:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:32:53,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:32:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:32:53,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:32:53,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:32:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:32:53,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:32:53,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:32:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:32:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:32:53,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:32:53,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:32:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:53,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:53,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-29 07:32:53,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:53,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 07:32:53,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:53,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:32:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-29 07:32:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:53,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-29 07:32:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:53,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:54,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:32:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:54,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-29 07:32:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:54,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:54,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:54,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 07:32:54,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 07:32:54,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:54,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:54,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-29 07:32:54,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:54,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 9391 backedges. 1936 proven. 111 refuted. 0 times theorem prover too weak. 7344 trivial. 0 not checked. [2020-10-29 07:32:56,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222732417] [2020-10-29 07:32:56,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:32:56,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:32:56,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113425586] [2020-10-29 07:32:56,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:32:56,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:32:56,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:32:56,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:32:56,648 INFO L87 Difference]: Start difference. First operand 4267 states and 4400 transitions. Second operand 7 states.