/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:54:02,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:54:02,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:54:02,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:54:02,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:54:02,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:54:02,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:54:02,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:54:02,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:54:02,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:54:02,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:54:02,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:54:02,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:54:02,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:54:02,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:54:02,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:54:02,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:54:02,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:54:02,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:54:02,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:54:02,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:54:02,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:54:02,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:54:02,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:54:02,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:54:02,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:54:02,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:54:02,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:54:02,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:54:02,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:54:02,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:54:02,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:54:02,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:54:02,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:54:02,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:54:02,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:54:02,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:54:02,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:54:02,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:54:02,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:54:02,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:54:02,223 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 [2020-10-28 12:54:02,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:54:02,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:54:02,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:54:02,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:54:02,294 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:54:02,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:54:02,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:54:02,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:54:02,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:54:02,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:54:02,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:54:02,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:54:02,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:54:02,297 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:54:02,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:54:02,298 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:54:02,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:54:02,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:54:02,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:54:02,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:54:02,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:54:02,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:54:02,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:54:02,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:54:02,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:54:02,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:54:02,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:54:02,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:54:02,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:54:02,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:54:02,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:54:02,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:54:02,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:54:02,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:54:02,805 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:54:02,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-10-28 12:54:02,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/692edcaee/4ee01b1479224ea285e8b65e0bbd7525/FLAGa1662f1b9 [2020-10-28 12:54:03,689 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:54:03,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-10-28 12:54:03,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/692edcaee/4ee01b1479224ea285e8b65e0bbd7525/FLAGa1662f1b9 [2020-10-28 12:54:03,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/692edcaee/4ee01b1479224ea285e8b65e0bbd7525 [2020-10-28 12:54:03,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:54:03,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:54:03,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:54:03,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:54:03,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:54:03,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:54:03" (1/1) ... [2020-10-28 12:54:03,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35dca622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:03, skipping insertion in model container [2020-10-28 12:54:03,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:54:03" (1/1) ... [2020-10-28 12:54:03,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:54:04,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:54:04,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:54:04,671 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:54:04,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:54:04,937 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:54:04,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04 WrapperNode [2020-10-28 12:54:04,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:54:04,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:54:04,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:54:04,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:54:04,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (1/1) ... [2020-10-28 12:54:04,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (1/1) ... [2020-10-28 12:54:04,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (1/1) ... [2020-10-28 12:54:04,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (1/1) ... [2020-10-28 12:54:05,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (1/1) ... [2020-10-28 12:54:05,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (1/1) ... [2020-10-28 12:54:05,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (1/1) ... [2020-10-28 12:54:05,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:54:05,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:54:05,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:54:05,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:54:05,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (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 [2020-10-28 12:54:05,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:54:05,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:54:05,186 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:54:05,186 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:54:05,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:54:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:54:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:54:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:54:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:54:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:54:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:54:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:54:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:54:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:54:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:54:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:54:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:54:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:54:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:54:07,224 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:54:07,225 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:54:07,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:54:07 BoogieIcfgContainer [2020-10-28 12:54:07,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:54:07,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:54:07,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:54:07,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:54:07,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:54:03" (1/3) ... [2020-10-28 12:54:07,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcf67ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:54:07, skipping insertion in model container [2020-10-28 12:54:07,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:04" (2/3) ... [2020-10-28 12:54:07,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcf67ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:54:07, skipping insertion in model container [2020-10-28 12:54:07,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:54:07" (3/3) ... [2020-10-28 12:54:07,239 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-10-28 12:54:07,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:54:07,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:54:07,279 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:54:07,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:54:07,314 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:54:07,315 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:54:07,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:54:07,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:54:07,315 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:54:07,315 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:54:07,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:54:07,343 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:54:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 12:54:07,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:07,355 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] [2020-10-28 12:54:07,355 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:07,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:07,363 INFO L82 PathProgramCache]: Analyzing trace with hash -553016610, now seen corresponding path program 1 times [2020-10-28 12:54:07,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:07,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820381626] [2020-10-28 12:54:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:07,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:08,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:08,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-28 12:54:08,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 711 [2020-10-28 12:54:08,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:08,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:54:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:54:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-28 12:54:08,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:54:08,585 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:54:08,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:08,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:08,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:08,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:08,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:08,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:54:08,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:08,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:54:08,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:54:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:54:08,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820381626] [2020-10-28 12:54:08,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:54:08,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 12:54:08,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771809796] [2020-10-28 12:54:08,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:54:08,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:08,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:54:08,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:54:08,689 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-28 12:54:08,872 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:54:13,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:13,072 INFO L93 Difference]: Finished difference Result 891 states and 1618 transitions. [2020-10-28 12:54:13,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:54:13,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-10-28 12:54:13,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:13,103 INFO L225 Difference]: With dead ends: 891 [2020-10-28 12:54:13,103 INFO L226 Difference]: Without dead ends: 565 [2020-10-28 12:54:13,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:13,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-28 12:54:13,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 561. [2020-10-28 12:54:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-28 12:54:13,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 856 transitions. [2020-10-28 12:54:13,271 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 856 transitions. Word has length 57 [2020-10-28 12:54:13,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:13,272 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 856 transitions. [2020-10-28 12:54:13,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:54:13,272 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 856 transitions. [2020-10-28 12:54:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-28 12:54:13,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:13,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:54:13,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:54:13,279 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:13,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:13,281 INFO L82 PathProgramCache]: Analyzing trace with hash 204881265, now seen corresponding path program 1 times [2020-10-28 12:54:13,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:13,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197391635] [2020-10-28 12:54:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:13,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:13,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 12:54:15,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:54:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1808 [2020-10-28 12:54:15,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:54:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:54:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:54:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:54:15,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:15,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:15,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:54:15,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:54:15,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-28 12:54:15,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:15,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:54:15,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 12:54:15,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:15,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:54:15,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:54:15,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197391635] [2020-10-28 12:54:15,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:54:15,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 12:54:15,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300022773] [2020-10-28 12:54:15,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:54:15,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:15,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:54:15,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:54:15,594 INFO L87 Difference]: Start difference. First operand 561 states and 856 transitions. Second operand 8 states. [2020-10-28 12:54:19,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:19,751 INFO L93 Difference]: Finished difference Result 2244 states and 3520 transitions. [2020-10-28 12:54:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:54:19,752 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2020-10-28 12:54:19,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:19,766 INFO L225 Difference]: With dead ends: 2244 [2020-10-28 12:54:19,767 INFO L226 Difference]: Without dead ends: 1689 [2020-10-28 12:54:19,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-28 12:54:19,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2020-10-28 12:54:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1499. [2020-10-28 12:54:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2020-10-28 12:54:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2196 transitions. [2020-10-28 12:54:19,848 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2196 transitions. Word has length 126 [2020-10-28 12:54:19,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:19,848 INFO L481 AbstractCegarLoop]: Abstraction has 1499 states and 2196 transitions. [2020-10-28 12:54:19,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:54:19,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2196 transitions. [2020-10-28 12:54:19,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-28 12:54:19,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:19,857 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:54:19,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:54:19,857 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:19,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:19,858 INFO L82 PathProgramCache]: Analyzing trace with hash 402723184, now seen corresponding path program 1 times [2020-10-28 12:54:19,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:19,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544906268] [2020-10-28 12:54:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:19,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:20,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:20,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-28 12:54:24,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:54:24,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 12:54:24,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:24,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-28 12:54:24,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:54:24,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:54:25,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:25,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:25,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:25,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:25,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:25,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:54:25,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:25,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:25,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:25,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:25,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:25,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:25,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:25,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:25,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:54:25,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:25,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:54:25,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:25,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 12:54:25,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:25,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 12:54:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:25,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:25,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:25,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:54:25,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:25,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-28 12:54:25,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:25,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:25,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:54:25,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:54:25,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544906268] [2020-10-28 12:54:25,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:25,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:25,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288809030] [2020-10-28 12:54:25,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:25,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:25,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:25,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:25,735 INFO L87 Difference]: Start difference. First operand 1499 states and 2196 transitions. Second operand 7 states. [2020-10-28 12:54:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:29,572 INFO L93 Difference]: Finished difference Result 3680 states and 5929 transitions. [2020-10-28 12:54:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:54:29,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-28 12:54:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:29,598 INFO L225 Difference]: With dead ends: 3680 [2020-10-28 12:54:29,598 INFO L226 Difference]: Without dead ends: 2187 [2020-10-28 12:54:29,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:54:29,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2020-10-28 12:54:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2069. [2020-10-28 12:54:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-28 12:54:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2899 transitions. [2020-10-28 12:54:29,731 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2899 transitions. Word has length 212 [2020-10-28 12:54:29,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:29,732 INFO L481 AbstractCegarLoop]: Abstraction has 2069 states and 2899 transitions. [2020-10-28 12:54:29,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2899 transitions. [2020-10-28 12:54:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-28 12:54:29,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:29,739 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, 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] [2020-10-28 12:54:29,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:54:29,739 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:29,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1904226258, now seen corresponding path program 1 times [2020-10-28 12:54:29,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:29,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941680702] [2020-10-28 12:54:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:29,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:29,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:30,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:30,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:33,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:34,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:34,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-28 12:54:34,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:54:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 12:54:34,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:34,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:34,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:34,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-28 12:54:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:54:34,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:54:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:34,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:34,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:34,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:34,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:54:34,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:34,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:34,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:35,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:35,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:54:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 12:54:35,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:35,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:54:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:35,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 12:54:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:35,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:35,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:35,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:54:35,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 12:54:35,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:35,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:54:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:54:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:54:35,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941680702] [2020-10-28 12:54:35,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:35,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:35,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418301297] [2020-10-28 12:54:35,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:35,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:35,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:35,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:35,412 INFO L87 Difference]: Start difference. First operand 2069 states and 2899 transitions. Second operand 7 states. [2020-10-28 12:54:38,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:38,639 INFO L93 Difference]: Finished difference Result 4348 states and 6374 transitions. [2020-10-28 12:54:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:54:38,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-10-28 12:54:38,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:38,652 INFO L225 Difference]: With dead ends: 4348 [2020-10-28 12:54:38,652 INFO L226 Difference]: Without dead ends: 1529 [2020-10-28 12:54:38,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:54:38,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-10-28 12:54:38,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1499. [2020-10-28 12:54:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2020-10-28 12:54:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1763 transitions. [2020-10-28 12:54:38,728 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1763 transitions. Word has length 213 [2020-10-28 12:54:38,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:38,729 INFO L481 AbstractCegarLoop]: Abstraction has 1499 states and 1763 transitions. [2020-10-28 12:54:38,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:38,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1763 transitions. [2020-10-28 12:54:38,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-10-28 12:54:38,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:38,741 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:54:38,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:54:38,741 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:38,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:38,742 INFO L82 PathProgramCache]: Analyzing trace with hash 912006257, now seen corresponding path program 1 times [2020-10-28 12:54:38,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:38,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391523241] [2020-10-28 12:54:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:38,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:39,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:39,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:40,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:43,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:43,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 442 [2020-10-28 12:54:43,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:54:43,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 12:54:43,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:43,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-28 12:54:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:54:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:54:43,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:44,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:54:44,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:44,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 12:54:44,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:54:44,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:54:44,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:44,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-28 12:54:44,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:44,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:54:44,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:54:44,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-10-28 12:54:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:54:44,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:54:44,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 12:54:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 258 proven. 79 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-28 12:54:45,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391523241] [2020-10-28 12:54:45,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:45,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:45,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163972451] [2020-10-28 12:54:45,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:45,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:45,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:45,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:45,053 INFO L87 Difference]: Start difference. First operand 1499 states and 1763 transitions. Second operand 7 states. [2020-10-28 12:54:47,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:47,178 INFO L93 Difference]: Finished difference Result 3936 states and 4718 transitions. [2020-10-28 12:54:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:54:47,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 426 [2020-10-28 12:54:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:47,197 INFO L225 Difference]: With dead ends: 3936 [2020-10-28 12:54:47,197 INFO L226 Difference]: Without dead ends: 2443 [2020-10-28 12:54:47,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:54:47,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2020-10-28 12:54:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2245. [2020-10-28 12:54:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2245 states. [2020-10-28 12:54:47,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 2587 transitions. [2020-10-28 12:54:47,291 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 2587 transitions. Word has length 426 [2020-10-28 12:54:47,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:47,292 INFO L481 AbstractCegarLoop]: Abstraction has 2245 states and 2587 transitions. [2020-10-28 12:54:47,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:47,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 2587 transitions. [2020-10-28 12:54:47,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2020-10-28 12:54:47,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:47,304 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:54:47,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:54:47,304 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:47,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1822257383, now seen corresponding path program 1 times [2020-10-28 12:54:47,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:47,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074928172] [2020-10-28 12:54:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:47,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:47,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:47,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:52,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:52,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 465 [2020-10-28 12:54:52,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:54:52,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-28 12:54:52,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:52,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:52,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:52,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-28 12:54:52,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:54:52,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:52,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:52,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:52,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:52,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:52,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:54:52,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:52,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:52,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:52,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:52,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:52,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:52,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:54:52,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:52,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 12:54:52,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:52,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:54:52,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:52,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:54:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:53,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:53,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:53,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:53,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-28 12:54:53,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:53,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:54:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:53,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-28 12:54:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:53,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:53,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:53,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:54:53,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:53,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:54:53,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:53,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 12:54:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 281 proven. 79 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-28 12:54:53,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074928172] [2020-10-28 12:54:53,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:53,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:53,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141423544] [2020-10-28 12:54:53,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:53,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:53,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:53,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:53,505 INFO L87 Difference]: Start difference. First operand 2245 states and 2587 transitions. Second operand 7 states. [2020-10-28 12:54:55,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:55,746 INFO L93 Difference]: Finished difference Result 5042 states and 5884 transitions. [2020-10-28 12:54:55,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:54:55,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 449 [2020-10-28 12:54:55,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:55,767 INFO L225 Difference]: With dead ends: 5042 [2020-10-28 12:54:55,767 INFO L226 Difference]: Without dead ends: 2985 [2020-10-28 12:54:55,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:54:55,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2020-10-28 12:54:55,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2985. [2020-10-28 12:54:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2985 states. [2020-10-28 12:54:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 3419 transitions. [2020-10-28 12:54:55,864 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 3419 transitions. Word has length 449 [2020-10-28 12:54:55,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:55,865 INFO L481 AbstractCegarLoop]: Abstraction has 2985 states and 3419 transitions. [2020-10-28 12:54:55,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:55,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 3419 transitions. [2020-10-28 12:54:55,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-28 12:54:55,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:55,884 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:54:55,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:54:55,885 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:55,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:55,885 INFO L82 PathProgramCache]: Analyzing trace with hash -39507294, now seen corresponding path program 1 times [2020-10-28 12:54:55,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:55,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595851346] [2020-10-28 12:54:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:56,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:56,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:56,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:56,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:01,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:01,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-28 12:55:01,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:55:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-28 12:55:01,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:01,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-28 12:55:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:55:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:01,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:01,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:01,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:01,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:01,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:01,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:01,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:01,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:01,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:01,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:55:01,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:01,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:55:01,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:01,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:01,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:01,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:55:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:01,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:01,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-28 12:55:01,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:01,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-28 12:55:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:01,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:01,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:01,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:01,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2020-10-28 12:55:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:01,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:01,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:55:01,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:01,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:55:01,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:01,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 12:55:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:01,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 513 proven. 79 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-28 12:55:02,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595851346] [2020-10-28 12:55:02,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:02,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:02,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551697986] [2020-10-28 12:55:02,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:02,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:02,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:02,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:02,348 INFO L87 Difference]: Start difference. First operand 2985 states and 3419 transitions. Second operand 7 states. [2020-10-28 12:55:04,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:04,647 INFO L93 Difference]: Finished difference Result 7254 states and 8469 transitions. [2020-10-28 12:55:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:55:04,648 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 626 [2020-10-28 12:55:04,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:04,669 INFO L225 Difference]: With dead ends: 7254 [2020-10-28 12:55:04,669 INFO L226 Difference]: Without dead ends: 4457 [2020-10-28 12:55:04,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:55:04,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2020-10-28 12:55:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 3721. [2020-10-28 12:55:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3721 states. [2020-10-28 12:55:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3721 states to 3721 states and 4345 transitions. [2020-10-28 12:55:04,794 INFO L78 Accepts]: Start accepts. Automaton has 3721 states and 4345 transitions. Word has length 626 [2020-10-28 12:55:04,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:04,795 INFO L481 AbstractCegarLoop]: Abstraction has 3721 states and 4345 transitions. [2020-10-28 12:55:04,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3721 states and 4345 transitions. [2020-10-28 12:55:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2020-10-28 12:55:04,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:04,820 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2020-10-28 12:55:04,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:55:04,820 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:04,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:04,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1457421687, now seen corresponding path program 1 times [2020-10-28 12:55:04,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:04,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345992789] [2020-10-28 12:55:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:09,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:09,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 728 [2020-10-28 12:55:09,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:55:09,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 12:55:09,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:09,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-28 12:55:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:09,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:10,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:10,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:10,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:10,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:10,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:10,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:10,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:10,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:10,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:10,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:55:10,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:10,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 12:55:10,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:10,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:10,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:55:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:10,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:55:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:10,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:10,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:10,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:10,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:10,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-28 12:55:10,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:10,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:10,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:55:10,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:10,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-28 12:55:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:10,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:11,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:11,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:11,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:11,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:55:11,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:11,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:55:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:11,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-28 12:55:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:11,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:11,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:11,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:11,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:11,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 12:55:11,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:11,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:55:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:11,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-28 12:55:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:11,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:11,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:11,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 387 proven. 332 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2020-10-28 12:55:11,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345992789] [2020-10-28 12:55:11,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:11,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:11,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822027304] [2020-10-28 12:55:11,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:11,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:11,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:11,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:11,772 INFO L87 Difference]: Start difference. First operand 3721 states and 4345 transitions. Second operand 7 states. [2020-10-28 12:55:14,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:14,337 INFO L93 Difference]: Finished difference Result 7638 states and 8958 transitions. [2020-10-28 12:55:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:55:14,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 708 [2020-10-28 12:55:14,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:14,358 INFO L225 Difference]: With dead ends: 7638 [2020-10-28 12:55:14,358 INFO L226 Difference]: Without dead ends: 3913 [2020-10-28 12:55:14,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:55:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2020-10-28 12:55:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3907. [2020-10-28 12:55:14,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3907 states. [2020-10-28 12:55:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3907 states to 3907 states and 4503 transitions. [2020-10-28 12:55:14,473 INFO L78 Accepts]: Start accepts. Automaton has 3907 states and 4503 transitions. Word has length 708 [2020-10-28 12:55:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:14,474 INFO L481 AbstractCegarLoop]: Abstraction has 3907 states and 4503 transitions. [2020-10-28 12:55:14,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:14,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3907 states and 4503 transitions. [2020-10-28 12:55:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2020-10-28 12:55:14,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:14,488 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, 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, 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, 1, 1] [2020-10-28 12:55:14,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:55:14,488 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:14,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:14,489 INFO L82 PathProgramCache]: Analyzing trace with hash 772446184, now seen corresponding path program 1 times [2020-10-28 12:55:14,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:14,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133260815] [2020-10-28 12:55:14,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:14,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:15,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:19,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:19,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 756 [2020-10-28 12:55:19,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:19,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-28 12:55:19,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:19,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:55:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-28 12:55:19,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:19,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:19,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:19,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:19,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:19,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:19,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:19,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:19,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:19,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:19,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:19,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:19,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:55:19,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:19,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:19,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:19,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:19,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:20,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:20,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:20,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:55:20,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:20,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:55:20,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:20,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:20,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:20,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:20,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:20,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 12:55:20,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:20,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:20,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:55:20,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:20,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:20,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:20,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:20,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:20,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 12:55:20,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:20,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:20,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:20,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:20,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:55:20,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2020-10-28 12:55:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:20,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:20,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:20,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:20,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:20,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 12:55:20,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:20,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:55:20,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:20,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:20,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-28 12:55:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:20,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:55:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:20,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:55:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 684 proven. 414 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2020-10-28 12:55:21,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133260815] [2020-10-28 12:55:21,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:21,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:55:21,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455519365] [2020-10-28 12:55:21,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:55:21,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:21,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:55:21,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:55:21,031 INFO L87 Difference]: Start difference. First operand 3907 states and 4503 transitions. Second operand 8 states. [2020-10-28 12:55:23,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:23,319 INFO L93 Difference]: Finished difference Result 8936 states and 10365 transitions. [2020-10-28 12:55:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:55:23,320 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 734 [2020-10-28 12:55:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:23,345 INFO L225 Difference]: With dead ends: 8936 [2020-10-28 12:55:23,346 INFO L226 Difference]: Without dead ends: 5217 [2020-10-28 12:55:23,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:55:23,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5217 states. [2020-10-28 12:55:23,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5217 to 5025. [2020-10-28 12:55:23,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2020-10-28 12:55:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 5771 transitions. [2020-10-28 12:55:23,598 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 5771 transitions. Word has length 734 [2020-10-28 12:55:23,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:23,605 INFO L481 AbstractCegarLoop]: Abstraction has 5025 states and 5771 transitions. [2020-10-28 12:55:23,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:55:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 5771 transitions. [2020-10-28 12:55:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2020-10-28 12:55:23,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:23,623 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, 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, 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, 1, 1] [2020-10-28 12:55:23,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:55:23,624 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:23,625 INFO L82 PathProgramCache]: Analyzing trace with hash -413512976, now seen corresponding path program 1 times [2020-10-28 12:55:23,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:23,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791321888] [2020-10-28 12:55:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:23,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:24,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:28,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:28,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 816 [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:28,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:28,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:28,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:28,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:28,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:28,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:55:28,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:28,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:28,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:28,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:28,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:28,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:28,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:29,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:29,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:29,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:29,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:55:29,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:29,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:29,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:29,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:29,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:29,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:29,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:29,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:29,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:29,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:29,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:55:29,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:29,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:29,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:55:29,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:29,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:29,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:29,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:29,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 12:55:29,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:29,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:55:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:29,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-28 12:55:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:29,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:29,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:29,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:29,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:29,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:55:29,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:29,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:55:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:29,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-28 12:55:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:29,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:29,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:29,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:29,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 12:55:29,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:29,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:55:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:29,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:29,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-28 12:55:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:29,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:29,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:29,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:29,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:29,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:55:29,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:29,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:55:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1742 backedges. 536 proven. 332 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2020-10-28 12:55:30,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791321888] [2020-10-28 12:55:30,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:30,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:30,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545278040] [2020-10-28 12:55:30,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:30,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:30,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:30,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:30,200 INFO L87 Difference]: Start difference. First operand 5025 states and 5771 transitions. Second operand 7 states. [2020-10-28 12:55:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:32,210 INFO L93 Difference]: Finished difference Result 10232 states and 11827 transitions. [2020-10-28 12:55:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:55:32,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 794 [2020-10-28 12:55:32,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:32,236 INFO L225 Difference]: With dead ends: 10232 [2020-10-28 12:55:32,237 INFO L226 Difference]: Without dead ends: 5395 [2020-10-28 12:55:32,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:55:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2020-10-28 12:55:32,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 5391. [2020-10-28 12:55:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5391 states. [2020-10-28 12:55:32,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 6188 transitions. [2020-10-28 12:55:32,370 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 6188 transitions. Word has length 794 [2020-10-28 12:55:32,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:32,372 INFO L481 AbstractCegarLoop]: Abstraction has 5391 states and 6188 transitions. [2020-10-28 12:55:32,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:32,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 6188 transitions. [2020-10-28 12:55:32,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-10-28 12:55:32,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:32,386 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, 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, 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] [2020-10-28 12:55:32,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:55:32,386 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:32,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:32,387 INFO L82 PathProgramCache]: Analyzing trace with hash -494267080, now seen corresponding path program 1 times [2020-10-28 12:55:32,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:32,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516933865] [2020-10-28 12:55:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:32,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:32,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:33,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:37,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:37,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 839 [2020-10-28 12:55:37,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:55:37,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-28 12:55:37,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:37,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:55:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:55:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:37,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:37,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:37,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:37,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:37,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:37,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:37,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:37,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:37,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:37,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:37,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:37,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:37,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:55:37,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:37,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:37,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:37,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:37,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:37,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:37,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:37,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:55:37,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:37,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:37,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:37,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:38,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:55:38,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:55:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:55:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:38,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-28 12:55:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:55:38,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:55:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 808 proven. 85 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-10-28 12:55:38,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516933865] [2020-10-28 12:55:38,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:38,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:38,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546288858] [2020-10-28 12:55:38,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:38,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:38,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:38,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:38,967 INFO L87 Difference]: Start difference. First operand 5391 states and 6188 transitions. Second operand 7 states. [2020-10-28 12:55:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:41,166 INFO L93 Difference]: Finished difference Result 10782 states and 12389 transitions. [2020-10-28 12:55:41,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:55:41,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 817 [2020-10-28 12:55:41,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:41,203 INFO L225 Difference]: With dead ends: 10782 [2020-10-28 12:55:41,203 INFO L226 Difference]: Without dead ends: 5579 [2020-10-28 12:55:41,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:55:41,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5579 states. [2020-10-28 12:55:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5579 to 5573. [2020-10-28 12:55:41,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5573 states. [2020-10-28 12:55:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5573 states to 5573 states and 6380 transitions. [2020-10-28 12:55:41,363 INFO L78 Accepts]: Start accepts. Automaton has 5573 states and 6380 transitions. Word has length 817 [2020-10-28 12:55:41,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:41,365 INFO L481 AbstractCegarLoop]: Abstraction has 5573 states and 6380 transitions. [2020-10-28 12:55:41,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:41,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states and 6380 transitions. [2020-10-28 12:55:41,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 912 [2020-10-28 12:55:41,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:41,381 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, 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, 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, 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] [2020-10-28 12:55:41,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:55:41,381 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:41,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:41,382 INFO L82 PathProgramCache]: Analyzing trace with hash 651471727, now seen corresponding path program 1 times [2020-10-28 12:55:41,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:41,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046922698] [2020-10-28 12:55:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:41,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:41,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:42,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:44,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:46,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 935 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:46,779 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:55:46,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:46,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:46,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:46,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:46,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:46,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:46,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:46,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:46,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:46,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:46,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:46,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:46,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:46,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:55:46,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:47,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:47,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:47,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:47,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:47,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:47,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-28 12:55:47,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:47,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:55:47,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:47,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:55:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:47,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:47,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:47,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:47,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:47,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:55:47,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:47,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:55:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:47,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:47,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:55:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:47,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:47,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:47,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:47,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:55:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:47,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:47,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:47,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:47,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:47,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:55:47,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:47,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:55:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:47,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:48,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2406 backedges. 716 proven. 332 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2020-10-28 12:55:48,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046922698] [2020-10-28 12:55:48,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:48,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:48,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87189237] [2020-10-28 12:55:48,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:48,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:48,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:48,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:48,039 INFO L87 Difference]: Start difference. First operand 5573 states and 6380 transitions. Second operand 7 states. [2020-10-28 12:55:50,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:50,493 INFO L93 Difference]: Finished difference Result 10970 states and 12588 transitions. [2020-10-28 12:55:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:55:50,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 911 [2020-10-28 12:55:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:50,519 INFO L225 Difference]: With dead ends: 10970 [2020-10-28 12:55:50,519 INFO L226 Difference]: Without dead ends: 5585 [2020-10-28 12:55:50,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:55:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5585 states. [2020-10-28 12:55:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5585 to 5395. [2020-10-28 12:55:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5395 states. [2020-10-28 12:55:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5395 states to 5395 states and 6007 transitions. [2020-10-28 12:55:50,647 INFO L78 Accepts]: Start accepts. Automaton has 5395 states and 6007 transitions. Word has length 911 [2020-10-28 12:55:50,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:50,649 INFO L481 AbstractCegarLoop]: Abstraction has 5395 states and 6007 transitions. [2020-10-28 12:55:50,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5395 states and 6007 transitions. [2020-10-28 12:55:50,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2020-10-28 12:55:50,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:50,666 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, 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, 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, 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, 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] [2020-10-28 12:55:50,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:55:50,666 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:50,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:50,667 INFO L82 PathProgramCache]: Analyzing trace with hash -710061560, now seen corresponding path program 1 times [2020-10-28 12:55:50,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:50,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363179053] [2020-10-28 12:55:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:50,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:51,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:55,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:55,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1018 [2020-10-28 12:55:55,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:55:55,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-28 12:55:55,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:55,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:55,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:55:55,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:55:55,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-28 12:55:55,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:56,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:56,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:56,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:56,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:55:56,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:56,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:56,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:56,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:56,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:55:56,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:56,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:56,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:56,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:56,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:55:56,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:56,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:56,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:56,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:55:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:56,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:55:56,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:56,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:56,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:56,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:55:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:56,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:55:56,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:55:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:56,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:55:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:56,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:56,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:57,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:55:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:57,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:57,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:57,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 12:55:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:57,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:55:57,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3017 backedges. 1566 proven. 85 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-28 12:55:57,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363179053] [2020-10-28 12:55:57,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:57,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 12:55:57,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645199391] [2020-10-28 12:55:57,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 12:55:57,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:57,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 12:55:57,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:55:57,872 INFO L87 Difference]: Start difference. First operand 5395 states and 6007 transitions. Second operand 10 states. [2020-10-28 12:56:01,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:01,592 INFO L93 Difference]: Finished difference Result 12645 states and 14258 transitions. [2020-10-28 12:56:01,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 12:56:01,598 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 992 [2020-10-28 12:56:01,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:01,628 INFO L225 Difference]: With dead ends: 12645 [2020-10-28 12:56:01,629 INFO L226 Difference]: Without dead ends: 7438 [2020-10-28 12:56:01,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-28 12:56:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7438 states. [2020-10-28 12:56:01,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7438 to 7059. [2020-10-28 12:56:01,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7059 states. [2020-10-28 12:56:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 8000 transitions. [2020-10-28 12:56:01,791 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 8000 transitions. Word has length 992 [2020-10-28 12:56:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:01,792 INFO L481 AbstractCegarLoop]: Abstraction has 7059 states and 8000 transitions. [2020-10-28 12:56:01,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 12:56:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 8000 transitions. [2020-10-28 12:56:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1123 [2020-10-28 12:56:01,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:01,814 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, 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, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:01,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:56:01,814 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:01,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:01,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1983130233, now seen corresponding path program 1 times [2020-10-28 12:56:01,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:01,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698165494] [2020-10-28 12:56:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:02,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:02,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:06,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1150 [2020-10-28 12:56:07,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:56:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-28 12:56:07,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:56:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 12:56:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:07,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:56:07,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:07,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:56:07,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:07,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:56:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:07,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:56:07,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:56:07,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:56:07,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:56:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:07,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:56:07,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:56:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:07,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:56:07,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:56:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:07,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-28 12:56:07,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:07,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:56:07,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:08,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:56:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:08,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:08,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:08,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:56:08,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:08,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 12:56:08,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:08,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:56:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-28 12:56:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:08,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:08,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:08,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:08,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:56:08,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:08,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:56:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:09,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3905 backedges. 1231 proven. 85 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-28 12:56:09,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698165494] [2020-10-28 12:56:09,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:09,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:09,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556941540] [2020-10-28 12:56:09,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:09,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:09,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:09,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:09,061 INFO L87 Difference]: Start difference. First operand 7059 states and 8000 transitions. Second operand 7 states. [2020-10-28 12:56:11,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:11,576 INFO L93 Difference]: Finished difference Result 13936 states and 15817 transitions. [2020-10-28 12:56:11,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:56:11,577 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1122 [2020-10-28 12:56:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:11,598 INFO L225 Difference]: With dead ends: 13936 [2020-10-28 12:56:11,598 INFO L226 Difference]: Without dead ends: 7065 [2020-10-28 12:56:11,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:56:11,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7065 states. [2020-10-28 12:56:11,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7065 to 6689. [2020-10-28 12:56:11,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6689 states. [2020-10-28 12:56:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 7351 transitions. [2020-10-28 12:56:11,757 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 7351 transitions. Word has length 1122 [2020-10-28 12:56:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:11,758 INFO L481 AbstractCegarLoop]: Abstraction has 6689 states and 7351 transitions. [2020-10-28 12:56:11,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 7351 transitions. [2020-10-28 12:56:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1241 [2020-10-28 12:56:11,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:11,784 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, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:11,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:56:11,784 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:11,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:11,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1637494674, now seen corresponding path program 1 times [2020-10-28 12:56:11,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:11,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234972544] [2020-10-28 12:56:11,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:12,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:12,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:12,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:16,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1270 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 12:56:17,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:17,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:56:17,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:17,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:56:17,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:17,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:56:17,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:17,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:56:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:56:17,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:56:17,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:56:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:17,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:56:17,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:56:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:17,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:56:17,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:56:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:17,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:56:17,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:56:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:17,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:56:17,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 12:56:17,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:56:17,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:17,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:56:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:56:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:18,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-28 12:56:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:56:18,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:18,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4887 backedges. 1404 proven. 85 refuted. 0 times theorem prover too weak. 3398 trivial. 0 not checked. [2020-10-28 12:56:19,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234972544] [2020-10-28 12:56:19,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:19,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:56:19,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145853069] [2020-10-28 12:56:19,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:56:19,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:19,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:56:19,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:56:19,952 INFO L87 Difference]: Start difference. First operand 6689 states and 7351 transitions. Second operand 8 states. [2020-10-28 12:56:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:22,979 INFO L93 Difference]: Finished difference Result 13200 states and 14522 transitions. [2020-10-28 12:56:22,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:56:22,982 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1240 [2020-10-28 12:56:22,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:23,003 INFO L225 Difference]: With dead ends: 13200 [2020-10-28 12:56:23,003 INFO L226 Difference]: Without dead ends: 6699 [2020-10-28 12:56:23,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:56:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6699 states. [2020-10-28 12:56:23,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6699 to 6687. [2020-10-28 12:56:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6687 states. [2020-10-28 12:56:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6687 states to 6687 states and 7339 transitions. [2020-10-28 12:56:23,172 INFO L78 Accepts]: Start accepts. Automaton has 6687 states and 7339 transitions. Word has length 1240 [2020-10-28 12:56:23,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:23,174 INFO L481 AbstractCegarLoop]: Abstraction has 6687 states and 7339 transitions. [2020-10-28 12:56:23,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:56:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 6687 states and 7339 transitions. [2020-10-28 12:56:23,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1563 [2020-10-28 12:56:23,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:23,226 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, 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, 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, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:56:23,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:56:23,227 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:23,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:23,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1452274704, now seen corresponding path program 1 times [2020-10-28 12:56:23,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:23,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308496321] [2020-10-28 12:56:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:23,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:23,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:28,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:28,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1596 [2020-10-28 12:56:28,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:56:28,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 12:56:28,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:28,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:28,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:56:28,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:56:28,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 317 [2020-10-28 12:56:28,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:28,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:28,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:28,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:28,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:28,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:28,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:56:28,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:28,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:28,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:28,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:28,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:28,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:28,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:28,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:28,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:56:28,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:28,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:28,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:28,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:28,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:29,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-28 12:56:29,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:29,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:29,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:56:29,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:29,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:56:29,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:56:29,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:56:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:29,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:56:29,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:29,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:29,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:56:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:29,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:56:29,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:56:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:29,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:56:29,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:56:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:29,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:56:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:56:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 12:56:29,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:56:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:56:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:29,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:29,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:29,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:56:29,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:29,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-28 12:56:29,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:29,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:29,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:29,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:29,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:56:29,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:29,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:56:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:30,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:30,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:30,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:56:30,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-28 12:56:30,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:30,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:56:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:30,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1427 [2020-10-28 12:56:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:30,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:30,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:30,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:30,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:56:30,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:30,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:56:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7415 backedges. 2738 proven. 293 refuted. 0 times theorem prover too weak. 4384 trivial. 0 not checked. [2020-10-28 12:56:32,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308496321] [2020-10-28 12:56:32,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:32,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:56:32,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801922502] [2020-10-28 12:56:32,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:56:32,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:32,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:56:32,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:56:32,362 INFO L87 Difference]: Start difference. First operand 6687 states and 7339 transitions. Second operand 8 states. [2020-10-28 12:56:34,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:34,584 INFO L93 Difference]: Finished difference Result 13392 states and 14722 transitions. [2020-10-28 12:56:34,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:56:34,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1562 [2020-10-28 12:56:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:34,606 INFO L225 Difference]: With dead ends: 13392 [2020-10-28 12:56:34,607 INFO L226 Difference]: Without dead ends: 6893 [2020-10-28 12:56:34,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:56:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6893 states. [2020-10-28 12:56:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6893 to 6869. [2020-10-28 12:56:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6869 states. [2020-10-28 12:56:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6869 states to 6869 states and 7525 transitions. [2020-10-28 12:56:34,756 INFO L78 Accepts]: Start accepts. Automaton has 6869 states and 7525 transitions. Word has length 1562 [2020-10-28 12:56:34,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:34,758 INFO L481 AbstractCegarLoop]: Abstraction has 6869 states and 7525 transitions. [2020-10-28 12:56:34,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:56:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6869 states and 7525 transitions. [2020-10-28 12:56:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1611 [2020-10-28 12:56:34,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:34,792 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, 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, 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, 8, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 12:56:34,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:56:34,792 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1275291216, now seen corresponding path program 1 times [2020-10-28 12:56:34,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:34,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236665039] [2020-10-28 12:56:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:35,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:35,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1644 [2020-10-28 12:56:40,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:40,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5209 [2020-10-28 12:56:40,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-28 12:56:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 12:56:40,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:40,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:56:40,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:40,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:56:40,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:40,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:56:40,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:40,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:56:40,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:56:40,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:56:40,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:56:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:40,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:56:40,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:56:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:40,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:56:40,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:56:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:40,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:56:40,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:56:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:40,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:56:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:40,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:56:40,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:56:40,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:40,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:40,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:56:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:56:41,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:56:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:56:41,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:56:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:56:41,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-28 12:56:41,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 12:56:41,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-28 12:56:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:41,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 12:56:41,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:56:41,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7568 backedges. 1536 proven. 2 refuted. 0 times theorem prover too weak. 6030 trivial. 0 not checked. [2020-10-28 12:56:42,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236665039] [2020-10-28 12:56:42,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:42,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:42,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851545081] [2020-10-28 12:56:42,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:42,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:42,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:42,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:42,880 INFO L87 Difference]: Start difference. First operand 6869 states and 7525 transitions. Second operand 7 states. [2020-10-28 12:56:45,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:45,245 INFO L93 Difference]: Finished difference Result 14866 states and 16447 transitions. [2020-10-28 12:56:45,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:56:45,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1610 [2020-10-28 12:56:45,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:45,261 INFO L225 Difference]: With dead ends: 14866 [2020-10-28 12:56:45,262 INFO L226 Difference]: Without dead ends: 6333 [2020-10-28 12:56:45,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:56:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6333 states. [2020-10-28 12:56:45,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6333 to 6293. [2020-10-28 12:56:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6293 states. [2020-10-28 12:56:45,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 6792 transitions. [2020-10-28 12:56:45,400 INFO L78 Accepts]: Start accepts. Automaton has 6293 states and 6792 transitions. Word has length 1610 [2020-10-28 12:56:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:45,402 INFO L481 AbstractCegarLoop]: Abstraction has 6293 states and 6792 transitions. [2020-10-28 12:56:45,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6293 states and 6792 transitions. [2020-10-28 12:56:45,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1649 [2020-10-28 12:56:45,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:45,441 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, 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, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1] [2020-10-28 12:56:45,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:56:45,441 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:45,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:45,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1258282797, now seen corresponding path program 1 times [2020-10-28 12:56:45,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:45,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570016790] [2020-10-28 12:56:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:45,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:46,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:48,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:49,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:50,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:50,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1684 [2020-10-28 12:56:50,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-28 12:56:50,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:50,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-28 12:56:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-28 12:56:50,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:51,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:56:51,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:51,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:56:51,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:51,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:56:51,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:51,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:56:51,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:56:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:56:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:51,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:56:51,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:56:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:56:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:56:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:56:51,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:56:51,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:56:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:56:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:56:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:52,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-28 12:56:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:52,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:52,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:52,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:56:52,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:52,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 12:56:52,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:52,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:56:52,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:52,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1513 [2020-10-28 12:56:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:52,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:52,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:52,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:52,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:56:52,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:52,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:56:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:52,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:53,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8563 backedges. 1800 proven. 85 refuted. 0 times theorem prover too weak. 6678 trivial. 0 not checked. [2020-10-28 12:56:53,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570016790] [2020-10-28 12:56:53,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:53,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:53,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207626033] [2020-10-28 12:56:53,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:53,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:53,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:53,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:53,524 INFO L87 Difference]: Start difference. First operand 6293 states and 6792 transitions. Second operand 7 states. [2020-10-28 12:56:55,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:55,935 INFO L93 Difference]: Finished difference Result 12062 states and 13071 transitions. [2020-10-28 12:56:55,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:56:55,936 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1648 [2020-10-28 12:56:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:55,947 INFO L225 Difference]: With dead ends: 12062 [2020-10-28 12:56:55,947 INFO L226 Difference]: Without dead ends: 4849 [2020-10-28 12:56:55,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:56:55,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2020-10-28 12:56:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4261. [2020-10-28 12:56:56,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4261 states. [2020-10-28 12:56:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 4452 transitions. [2020-10-28 12:56:56,032 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 4452 transitions. Word has length 1648 [2020-10-28 12:56:56,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:56,034 INFO L481 AbstractCegarLoop]: Abstraction has 4261 states and 4452 transitions. [2020-10-28 12:56:56,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:56,034 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 4452 transitions. [2020-10-28 12:56:56,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1673 [2020-10-28 12:56:56,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:56,069 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, 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, 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, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1] [2020-10-28 12:56:56,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:56:56,070 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:56,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:56,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1785271099, now seen corresponding path program 1 times [2020-10-28 12:56:56,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:56,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35440579] [2020-10-28 12:56:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:56,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:57,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:59,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1708 [2020-10-28 12:57:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 12:57:01,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-28 12:57:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 12:57:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:01,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:57:01,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:57:01,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:01,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:57:01,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:01,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:01,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:01,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:57:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:01,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:57:01,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:01,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:57:01,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:01,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:01,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:01,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:02,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:57:02,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:02,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:02,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:57:02,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:02,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:57:02,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:02,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:57:02,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:02,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:57:02,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:02,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:02,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:57:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:57:02,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:57:02,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:57:02,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:57:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:02,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:02,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:02,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:57:02,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:02,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 12:57:02,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:02,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:57:02,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 8705 backedges. 1673 proven. 2 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2020-10-28 12:57:04,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35440579] [2020-10-28 12:57:04,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:04,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:04,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181300954] [2020-10-28 12:57:04,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:04,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:04,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:04,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:04,405 INFO L87 Difference]: Start difference. First operand 4261 states and 4452 transitions. Second operand 7 states. [2020-10-28 12:57:06,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:06,681 INFO L93 Difference]: Finished difference Result 8340 states and 8720 transitions. [2020-10-28 12:57:06,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:57:06,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1672 [2020-10-28 12:57:06,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:06,691 INFO L225 Difference]: With dead ends: 8340 [2020-10-28 12:57:06,692 INFO L226 Difference]: Without dead ends: 4267 [2020-10-28 12:57:06,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:57:06,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2020-10-28 12:57:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4261. [2020-10-28 12:57:06,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4261 states. [2020-10-28 12:57:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 4435 transitions. [2020-10-28 12:57:06,765 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 4435 transitions. Word has length 1672 [2020-10-28 12:57:06,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:06,767 INFO L481 AbstractCegarLoop]: Abstraction has 4261 states and 4435 transitions. [2020-10-28 12:57:06,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:06,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 4435 transitions. [2020-10-28 12:57:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1777 [2020-10-28 12:57:06,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:06,815 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 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, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 1, 1, 1] [2020-10-28 12:57:06,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:57:06,815 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:06,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:06,816 INFO L82 PathProgramCache]: Analyzing trace with hash -800681416, now seen corresponding path program 1 times [2020-10-28 12:57:06,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:06,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792587465] [2020-10-28 12:57:06,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:07,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:08,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:11,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1814 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1535 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 12:57:12,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:12,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:12,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:12,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:57:12,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:12,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:12,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:13,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:57:13,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:57:13,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:57:13,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:57:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 12:57:13,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:57:13,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:13,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:57:13,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 157 [2020-10-28 12:57:13,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1511 [2020-10-28 12:57:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:57:13,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-28 12:57:13,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:57:13,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1641 [2020-10-28 12:57:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:57:13,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:57:13,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:57:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 10019 backedges. 2098 proven. 85 refuted. 0 times theorem prover too weak. 7836 trivial. 0 not checked. [2020-10-28 12:57:16,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792587465] [2020-10-28 12:57:16,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:16,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:16,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338447707] [2020-10-28 12:57:16,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:16,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:16,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:16,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:16,503 INFO L87 Difference]: Start difference. First operand 4261 states and 4435 transitions. Second operand 7 states. [2020-10-28 12:57:17,717 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-28 12:57:18,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:18,664 INFO L93 Difference]: Finished difference Result 8518 states and 8874 transitions. [2020-10-28 12:57:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:57:18,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1776 [2020-10-28 12:57:18,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:18,672 INFO L225 Difference]: With dead ends: 8518 [2020-10-28 12:57:18,672 INFO L226 Difference]: Without dead ends: 4073 [2020-10-28 12:57:18,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:57:18,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2020-10-28 12:57:18,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4067. [2020-10-28 12:57:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4067 states. [2020-10-28 12:57:18,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 4213 transitions. [2020-10-28 12:57:18,751 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 4213 transitions. Word has length 1776 [2020-10-28 12:57:18,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:18,752 INFO L481 AbstractCegarLoop]: Abstraction has 4067 states and 4213 transitions. [2020-10-28 12:57:18,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 4213 transitions. [2020-10-28 12:57:18,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1798 [2020-10-28 12:57:18,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:18,791 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 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, 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, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1] [2020-10-28 12:57:18,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:57:18,791 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:18,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:18,792 INFO L82 PathProgramCache]: Analyzing trace with hash 281058806, now seen corresponding path program 1 times [2020-10-28 12:57:18,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:18,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978427537] [2020-10-28 12:57:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:19,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:23,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1835 [2020-10-28 12:57:24,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-28 12:57:24,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1776 [2020-10-28 12:57:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 12:57:24,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:24,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:57:24,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:24,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:57:24,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:24,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:57:24,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:24,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:57:24,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:24,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:57:24,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:24,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:57:24,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:24,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:24,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:24,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:24,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:24,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:24,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:57:24,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:24,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:24,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:24,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:25,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:25,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:25,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:25,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:25,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:25,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:25,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:57:25,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:25,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:25,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:25,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:25,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:25,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:25,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:57:25,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:25,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:25,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:25,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:25,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:25,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:57:25,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:57:25,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:25,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:25,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:57:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:25,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:25,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:57:25,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:57:25,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:25,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:25,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:57:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:25,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:25,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:57:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:57:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:25,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:25,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-28 12:57:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:25,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:25,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:57:25,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:25,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:57:25,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:25,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 12:57:25,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0