/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_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:52:36,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:52:36,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:52:36,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:52:36,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:52:36,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:52:36,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:52:36,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:52:36,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:52:36,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:52:36,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:52:36,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:52:36,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:52:36,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:52:36,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:52:36,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:52:36,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:52:36,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:52:36,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:52:36,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:52:36,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:52:36,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:52:36,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:52:36,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:52:36,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:52:36,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:52:36,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:52:36,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:52:36,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:52:36,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:52:36,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:52:36,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:52:36,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:52:36,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:52:36,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:52:36,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:52:36,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:52:36,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:52:36,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:52:36,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:52:36,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:52:36,238 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 12:52:36,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:52:36,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:52:36,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:52:36,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:52:36,300 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:52:36,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:52:36,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:52:36,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:52:36,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:52:36,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:52:36,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:52:36,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:52:36,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:52:36,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:52:36,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:52:36,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:52:36,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:52:36,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:52:36,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:52:36,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:52:36,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:52:36,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:52:36,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:52:36,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:52:36,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:52:36,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:52:36,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:52:36,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:52:36,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:52:36,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:52:36,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:52:36,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:52:36,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:52:36,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:52:36,781 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:52:36,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label32.c [2020-10-28 12:52:36,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02fad5269/18763344be364a31a6a250bdb7247620/FLAGd97e94641 [2020-10-28 12:52:37,728 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:52:37,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label32.c [2020-10-28 12:52:37,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02fad5269/18763344be364a31a6a250bdb7247620/FLAGd97e94641 [2020-10-28 12:52:37,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02fad5269/18763344be364a31a6a250bdb7247620 [2020-10-28 12:52:37,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:52:37,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:52:37,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:52:37,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:52:37,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:52:37,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:52:37" (1/1) ... [2020-10-28 12:52:37,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a34a268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:37, skipping insertion in model container [2020-10-28 12:52:37,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:52:37" (1/1) ... [2020-10-28 12:52:37,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:52:38,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:52:38,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:52:38,519 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:52:38,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:52:38,828 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:52:38,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38 WrapperNode [2020-10-28 12:52:38,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:52:38,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:52:38,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:52:38,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:52:38,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... [2020-10-28 12:52:38,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... [2020-10-28 12:52:38,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... [2020-10-28 12:52:38,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... [2020-10-28 12:52:38,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... [2020-10-28 12:52:39,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... [2020-10-28 12:52:39,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... [2020-10-28 12:52:39,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:52:39,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:52:39,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:52:39,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:52:39,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:52:39,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:52:39,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:52:39,143 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:52:39,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:52:39,145 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:52:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:52:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:52:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:52:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:52:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:52:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:52:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:52:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:52:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:52:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:52:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:52:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:52:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:52:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:52:40,783 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:52:40,783 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:52:40,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:52:40 BoogieIcfgContainer [2020-10-28 12:52:40,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:52:40,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:52:40,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:52:40,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:52:40,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:52:37" (1/3) ... [2020-10-28 12:52:40,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2270044f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:52:40, skipping insertion in model container [2020-10-28 12:52:40,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:52:38" (2/3) ... [2020-10-28 12:52:40,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2270044f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:52:40, skipping insertion in model container [2020-10-28 12:52:40,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:52:40" (3/3) ... [2020-10-28 12:52:40,796 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2020-10-28 12:52:40,808 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:52:40,814 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:52:40,829 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:52:40,859 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:52:40,859 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:52:40,859 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:52:40,859 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:52:40,859 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:52:40,860 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:52:40,860 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:52:40,860 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:52:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:52:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-28 12:52:40,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:40,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:40,895 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:40,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1984795856, now seen corresponding path program 1 times [2020-10-28 12:52:40,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:40,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107288049] [2020-10-28 12:52:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:41,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:41,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:41,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 12:52:41,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 765 [2020-10-28 12:52:41,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:41,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:52:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:52:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 12:52:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:52:42,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:42,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:42,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:42,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:42,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:52:42,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:42,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:52:42,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:42,188 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 12:52:42,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107288049] [2020-10-28 12:52:42,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:52:42,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:52:42,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139286408] [2020-10-28 12:52:42,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:52:42,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:42,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:52:42,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:52:42,229 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-28 12:52:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:44,726 INFO L93 Difference]: Finished difference Result 703 states and 1246 transitions. [2020-10-28 12:52:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:52:44,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-10-28 12:52:44,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:44,745 INFO L225 Difference]: With dead ends: 703 [2020-10-28 12:52:44,746 INFO L226 Difference]: Without dead ends: 381 [2020-10-28 12:52:44,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:52:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-28 12:52:44,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-28 12:52:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-28 12:52:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 553 transitions. [2020-10-28 12:52:44,867 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 553 transitions. Word has length 62 [2020-10-28 12:52:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:44,868 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 553 transitions. [2020-10-28 12:52:44,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:52:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 553 transitions. [2020-10-28 12:52:44,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 12:52:44,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:44,876 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 12:52:44,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:52:44,877 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:44,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:44,878 INFO L82 PathProgramCache]: Analyzing trace with hash 622706108, now seen corresponding path program 1 times [2020-10-28 12:52:44,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:44,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388352725] [2020-10-28 12:52:44,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:45,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 12:52:46,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:52:46,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1915 [2020-10-28 12:52:46,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:52:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:52:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:52:46,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:46,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:47,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:47,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:47,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:47,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:52:47,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:47,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:47,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:52:47,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:52:47,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:47,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:47,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:52:47,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:47,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 12:52:47,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:47,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:52:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:52:47,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388352725] [2020-10-28 12:52:47,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:52:47,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:52:47,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014281571] [2020-10-28 12:52:47,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:47,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:47,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:47,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:47,341 INFO L87 Difference]: Start difference. First operand 377 states and 553 transitions. Second operand 7 states. [2020-10-28 12:52:49,500 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:52:50,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:50,679 INFO L93 Difference]: Finished difference Result 1144 states and 1712 transitions. [2020-10-28 12:52:50,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:52:50,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-28 12:52:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:50,690 INFO L225 Difference]: With dead ends: 1144 [2020-10-28 12:52:50,690 INFO L226 Difference]: Without dead ends: 773 [2020-10-28 12:52:50,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-10-28 12:52:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 753. [2020-10-28 12:52:50,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-28 12:52:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 994 transitions. [2020-10-28 12:52:50,784 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 994 transitions. Word has length 131 [2020-10-28 12:52:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:50,785 INFO L481 AbstractCegarLoop]: Abstraction has 753 states and 994 transitions. [2020-10-28 12:52:50,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 994 transitions. [2020-10-28 12:52:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-28 12:52:50,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:50,792 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 12:52:50,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:52:50,793 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:50,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:50,794 INFO L82 PathProgramCache]: Analyzing trace with hash -521290340, now seen corresponding path program 1 times [2020-10-28 12:52:50,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:50,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674090521] [2020-10-28 12:52:50,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:50,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:50,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:51,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:51,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:55,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:55,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-28 12:52:55,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:55,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 12:52:55,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:55,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:55,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:55,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-28 12:52:55,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:52:55,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:55,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:56,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:52:56,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:52:56,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:52:56,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:56,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:52:56,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 12:52:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:52:56,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-28 12:52:56,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:56,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:56,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:52:56,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:52:56,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674090521] [2020-10-28 12:52:56,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:56,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:56,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916667787] [2020-10-28 12:52:56,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:56,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:56,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:56,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:56,482 INFO L87 Difference]: Start difference. First operand 753 states and 994 transitions. Second operand 7 states. [2020-10-28 12:52:59,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:59,482 INFO L93 Difference]: Finished difference Result 2078 states and 2812 transitions. [2020-10-28 12:52:59,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:52:59,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-10-28 12:52:59,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:59,492 INFO L225 Difference]: With dead ends: 2078 [2020-10-28 12:52:59,493 INFO L226 Difference]: Without dead ends: 1331 [2020-10-28 12:52:59,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:52:59,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2020-10-28 12:52:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1319. [2020-10-28 12:52:59,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-10-28 12:52:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1655 transitions. [2020-10-28 12:52:59,561 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1655 transitions. Word has length 218 [2020-10-28 12:52:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:59,562 INFO L481 AbstractCegarLoop]: Abstraction has 1319 states and 1655 transitions. [2020-10-28 12:52:59,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:59,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1655 transitions. [2020-10-28 12:52:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-28 12:52:59,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:59,572 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:52:59,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:52:59,572 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:59,573 INFO L82 PathProgramCache]: Analyzing trace with hash -2146570384, now seen corresponding path program 1 times [2020-10-28 12:52:59,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:59,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127132807] [2020-10-28 12:52:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:59,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:03,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-28 12:53:04,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:53:04,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-28 12:53:04,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-28 12:53:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 12:53:04,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:04,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:53:04,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 12:53:04,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:53:04,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 12:53:04,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:53:04,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:05,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 12:53:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:05,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-28 12:53:05,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 12:53:05,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:53:05,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127132807] [2020-10-28 12:53:05,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:05,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:53:05,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787951227] [2020-10-28 12:53:05,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:53:05,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:05,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:53:05,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:53:05,467 INFO L87 Difference]: Start difference. First operand 1319 states and 1655 transitions. Second operand 7 states. [2020-10-28 12:53:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:08,345 INFO L93 Difference]: Finished difference Result 3224 states and 4126 transitions. [2020-10-28 12:53:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:53:08,347 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2020-10-28 12:53:08,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:08,362 INFO L225 Difference]: With dead ends: 3224 [2020-10-28 12:53:08,362 INFO L226 Difference]: Without dead ends: 1519 [2020-10-28 12:53:08,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:53:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2020-10-28 12:53:08,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1311. [2020-10-28 12:53:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1311 states. [2020-10-28 12:53:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1420 transitions. [2020-10-28 12:53:08,444 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1420 transitions. Word has length 275 [2020-10-28 12:53:08,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:08,445 INFO L481 AbstractCegarLoop]: Abstraction has 1311 states and 1420 transitions. [2020-10-28 12:53:08,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:53:08,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1420 transitions. [2020-10-28 12:53:08,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-28 12:53:08,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:08,454 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:53:08,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:53:08,455 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:08,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:08,455 INFO L82 PathProgramCache]: Analyzing trace with hash 4712484, now seen corresponding path program 1 times [2020-10-28 12:53:08,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:08,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973095729] [2020-10-28 12:53:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:08,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:08,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:12,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:13,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:13,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-28 12:53:13,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:53:13,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 12:53:13,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:13,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 12:53:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:53:13,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:13,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:13,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:13,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:13,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:13,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:13,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:53:13,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:13,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:13,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:13,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:53:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:13,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:13,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:13,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:13,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 12:53:13,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:13,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:53:13,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:13,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:53:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:13,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:14,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-28 12:53:14,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:53:14,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:14,555 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:53:14,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973095729] [2020-10-28 12:53:14,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:14,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:53:14,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717816511] [2020-10-28 12:53:14,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:53:14,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:14,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:53:14,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:53:14,559 INFO L87 Difference]: Start difference. First operand 1311 states and 1420 transitions. Second operand 7 states. [2020-10-28 12:53:16,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:16,599 INFO L93 Difference]: Finished difference Result 3184 states and 3503 transitions. [2020-10-28 12:53:16,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:53:16,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2020-10-28 12:53:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:16,616 INFO L225 Difference]: With dead ends: 3184 [2020-10-28 12:53:16,617 INFO L226 Difference]: Without dead ends: 1877 [2020-10-28 12:53:16,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 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 12:53:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2020-10-28 12:53:16,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1869. [2020-10-28 12:53:16,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1869 states. [2020-10-28 12:53:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2015 transitions. [2020-10-28 12:53:16,686 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2015 transitions. Word has length 350 [2020-10-28 12:53:16,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:16,688 INFO L481 AbstractCegarLoop]: Abstraction has 1869 states and 2015 transitions. [2020-10-28 12:53:16,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:53:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2015 transitions. [2020-10-28 12:53:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2020-10-28 12:53:16,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:16,701 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:16,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:53:16,701 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:16,702 INFO L82 PathProgramCache]: Analyzing trace with hash 541707724, now seen corresponding path program 1 times [2020-10-28 12:53:16,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:16,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699214258] [2020-10-28 12:53:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:16,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:16,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:17,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:18,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:21,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:21,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 500 [2020-10-28 12:53:21,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:53:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 12:53:21,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:21,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-28 12:53:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:53:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:21,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:21,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:21,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:21,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:21,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:53:21,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:21,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:21,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:21,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:22,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:22,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:22,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:22,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:53:22,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:22,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:22,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:22,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:22,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:22,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:22,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:53:22,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:22,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 12:53:22,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:22,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:53:22,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:22,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-28 12:53:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:22,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:22,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:22,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:22,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-28 12:53:22,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:22,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:53:22,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 404 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-28 12:53:23,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699214258] [2020-10-28 12:53:23,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:23,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:53:23,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674156620] [2020-10-28 12:53:23,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:53:23,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:23,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:53:23,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:53:23,074 INFO L87 Difference]: Start difference. First operand 1869 states and 2015 transitions. Second operand 7 states. [2020-10-28 12:53:25,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:25,302 INFO L93 Difference]: Finished difference Result 4126 states and 4538 transitions. [2020-10-28 12:53:25,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:53:25,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 484 [2020-10-28 12:53:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:25,320 INFO L225 Difference]: With dead ends: 4126 [2020-10-28 12:53:25,320 INFO L226 Difference]: Without dead ends: 2445 [2020-10-28 12:53:25,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:53:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2020-10-28 12:53:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2253. [2020-10-28 12:53:25,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2253 states. [2020-10-28 12:53:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 2456 transitions. [2020-10-28 12:53:25,406 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 2456 transitions. Word has length 484 [2020-10-28 12:53:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:25,407 INFO L481 AbstractCegarLoop]: Abstraction has 2253 states and 2456 transitions. [2020-10-28 12:53:25,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:53:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 2456 transitions. [2020-10-28 12:53:25,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-10-28 12:53:25,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:25,416 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:53:25,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:53:25,417 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:25,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1790699528, now seen corresponding path program 1 times [2020-10-28 12:53:25,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:25,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809618506] [2020-10-28 12:53:25,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:25,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:27,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:28,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:30,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:30,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 595 [2020-10-28 12:53:30,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:53:30,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-28 12:53:30,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:30,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:53:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:53:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-28 12:53:30,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:30,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:30,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:30,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:30,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:30,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:30,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:53:30,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:30,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:30,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:30,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:30,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:30,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:30,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:30,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:53:30,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:30,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:30,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:30,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:31,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:31,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:31,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:31,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 12:53:31,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:31,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:31,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:31,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:31,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:53:31,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:31,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:31,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:31,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:31,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:31,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:31,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-28 12:53:31,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:31,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:31,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:53:31,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:31,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:31,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:31,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:31,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:31,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-28 12:53:31,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:31,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:53:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:32,334 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 649 proven. 116 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-28 12:53:32,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809618506] [2020-10-28 12:53:32,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:32,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:53:32,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513311760] [2020-10-28 12:53:32,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:53:32,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:32,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:53:32,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:53:32,338 INFO L87 Difference]: Start difference. First operand 2253 states and 2456 transitions. Second operand 8 states. [2020-10-28 12:53:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:34,525 INFO L93 Difference]: Finished difference Result 5262 states and 5857 transitions. [2020-10-28 12:53:34,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:53:34,534 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 577 [2020-10-28 12:53:34,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:34,552 INFO L225 Difference]: With dead ends: 5262 [2020-10-28 12:53:34,553 INFO L226 Difference]: Without dead ends: 3381 [2020-10-28 12:53:34,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:53:34,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2020-10-28 12:53:34,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3369. [2020-10-28 12:53:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3369 states. [2020-10-28 12:53:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3369 states to 3369 states and 3671 transitions. [2020-10-28 12:53:34,664 INFO L78 Accepts]: Start accepts. Automaton has 3369 states and 3671 transitions. Word has length 577 [2020-10-28 12:53:34,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:34,665 INFO L481 AbstractCegarLoop]: Abstraction has 3369 states and 3671 transitions. [2020-10-28 12:53:34,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:53:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3369 states and 3671 transitions. [2020-10-28 12:53:34,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-10-28 12:53:34,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:34,675 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:53:34,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:53:34,675 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:34,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:34,676 INFO L82 PathProgramCache]: Analyzing trace with hash -762965184, now seen corresponding path program 1 times [2020-10-28 12:53:34,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:34,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802004985] [2020-10-28 12:53:34,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:34,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:35,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:37,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:39,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:39,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 679 [2020-10-28 12:53:39,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:53:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 12:53:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:39,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-28 12:53:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:53:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:39,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:39,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:40,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:40,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:40,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:40,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:53:40,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:40,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:40,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:40,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:40,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:40,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:40,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:40,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:53:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:40,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:40,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:40,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:40,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:53:40,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:40,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:53:40,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:40,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:40,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:40,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:40,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:53:40,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:40,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-28 12:53:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:40,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:53:40,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:40,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2020-10-28 12:53:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:40,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:40,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:40,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:40,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:40,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:53:40,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:40,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:53:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:40,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:41,189 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 466 proven. 176 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-10-28 12:53:41,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802004985] [2020-10-28 12:53:41,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:41,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:53:41,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417727069] [2020-10-28 12:53:41,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:53:41,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:41,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:53:41,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:53:41,192 INFO L87 Difference]: Start difference. First operand 3369 states and 3671 transitions. Second operand 8 states. [2020-10-28 12:53:44,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:44,636 INFO L93 Difference]: Finished difference Result 7665 states and 8484 transitions. [2020-10-28 12:53:44,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:53:44,637 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 661 [2020-10-28 12:53:44,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:44,660 INFO L225 Difference]: With dead ends: 7665 [2020-10-28 12:53:44,660 INFO L226 Difference]: Without dead ends: 4482 [2020-10-28 12:53:44,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:53:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2020-10-28 12:53:44,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 3927. [2020-10-28 12:53:44,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3927 states. [2020-10-28 12:53:44,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 4304 transitions. [2020-10-28 12:53:44,780 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 4304 transitions. Word has length 661 [2020-10-28 12:53:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:44,781 INFO L481 AbstractCegarLoop]: Abstraction has 3927 states and 4304 transitions. [2020-10-28 12:53:44,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:53:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 4304 transitions. [2020-10-28 12:53:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2020-10-28 12:53:44,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:44,791 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:53:44,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:53:44,791 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:44,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:44,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1623106288, now seen corresponding path program 1 times [2020-10-28 12:53:44,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:44,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161186311] [2020-10-28 12:53:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:45,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:45,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:47,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 756 [2020-10-28 12:53:50,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:53:50,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-28 12:53:50,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:53:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:53:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:50,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:53:50,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:50,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:53:50,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:50,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:53:50,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:50,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:53:50,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:53:50,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-28 12:53:50,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:53:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:53:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:50,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-28 12:53:50,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:53:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:51,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 768 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-28 12:53:51,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161186311] [2020-10-28 12:53:51,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:51,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:53:51,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613980644] [2020-10-28 12:53:51,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:53:51,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:51,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:53:51,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:53:51,279 INFO L87 Difference]: Start difference. First operand 3927 states and 4304 transitions. Second operand 7 states. [2020-10-28 12:53:53,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:53,527 INFO L93 Difference]: Finished difference Result 8409 states and 9348 transitions. [2020-10-28 12:53:53,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:53:53,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 736 [2020-10-28 12:53:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:53,553 INFO L225 Difference]: With dead ends: 8409 [2020-10-28 12:53:53,553 INFO L226 Difference]: Without dead ends: 4854 [2020-10-28 12:53:53,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:53:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4854 states. [2020-10-28 12:53:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4854 to 4667. [2020-10-28 12:53:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4667 states. [2020-10-28 12:53:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4667 states to 4667 states and 5185 transitions. [2020-10-28 12:53:53,681 INFO L78 Accepts]: Start accepts. Automaton has 4667 states and 5185 transitions. Word has length 736 [2020-10-28 12:53:53,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:53,682 INFO L481 AbstractCegarLoop]: Abstraction has 4667 states and 5185 transitions. [2020-10-28 12:53:53,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:53:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4667 states and 5185 transitions. [2020-10-28 12:53:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2020-10-28 12:53:53,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:53,693 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 12:53:53,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:53:53,693 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:53,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:53,694 INFO L82 PathProgramCache]: Analyzing trace with hash 83561268, now seen corresponding path program 1 times [2020-10-28 12:53:53,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:53,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347257461] [2020-10-28 12:53:53,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:54,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:56,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:56,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 834 [2020-10-28 12:53:56,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:53:56,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2465 [2020-10-28 12:53:56,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:56,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:53:56,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:53:56,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:56,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:56,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:56,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:56,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:56,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:53:56,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:56,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:56,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:56,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:56,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:56,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:56,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:56,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:53:56,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:56,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:56,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:56,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:56,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:56,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:56,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:56,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:56,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:56,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:53:56,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:56,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:56,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:56,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:56,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:56,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:56,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:56,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:56,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:56,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:56,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:56,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:53:56,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:56,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:56,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:56,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:56,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:56,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:56,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:56,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:53:56,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:56,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 12:53:56,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:56,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:53:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:56,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:53:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:56,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:57,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:57,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:57,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:57,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:53:57,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:57,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:53:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:57,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:53:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:57,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:57,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:57,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:57,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 12:53:57,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:57,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:53:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:57,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 647 proven. 75 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2020-10-28 12:53:57,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347257461] [2020-10-28 12:53:57,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:57,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:53:57,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111090525] [2020-10-28 12:53:57,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:53:57,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:57,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:53:57,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:53:57,621 INFO L87 Difference]: Start difference. First operand 4667 states and 5185 transitions. Second operand 7 states. [2020-10-28 12:53:59,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:59,853 INFO L93 Difference]: Finished difference Result 10070 states and 11400 transitions. [2020-10-28 12:53:59,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:53:59,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 812 [2020-10-28 12:53:59,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:59,883 INFO L225 Difference]: With dead ends: 10070 [2020-10-28 12:53:59,883 INFO L226 Difference]: Without dead ends: 5587 [2020-10-28 12:53:59,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:53:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5587 states. [2020-10-28 12:54:00,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5587 to 5587. [2020-10-28 12:54:00,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5587 states. [2020-10-28 12:54:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5587 states to 5587 states and 6200 transitions. [2020-10-28 12:54:00,053 INFO L78 Accepts]: Start accepts. Automaton has 5587 states and 6200 transitions. Word has length 812 [2020-10-28 12:54:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:00,054 INFO L481 AbstractCegarLoop]: Abstraction has 5587 states and 6200 transitions. [2020-10-28 12:54:00,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:00,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5587 states and 6200 transitions. [2020-10-28 12:54:00,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2020-10-28 12:54:00,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:00,069 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:54:00,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:54:00,070 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:00,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:00,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1209809364, now seen corresponding path program 1 times [2020-10-28 12:54:00,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:00,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956163470] [2020-10-28 12:54:00,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:05,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:05,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 926 [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:54:05,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:05,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:05,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:05,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:05,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:05,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:05,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:54:05,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:05,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:05,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:05,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:05,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:05,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:05,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:05,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:05,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:05,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:05,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:05,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:05,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:05,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:05,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:05,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:05,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:05,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:05,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:54:05,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:05,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:54:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:05,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-28 12:54:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:05,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:05,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:54:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:05,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-28 12:54:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:05,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:06,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:06,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:06,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:06,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:54:06,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:06,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:54:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:06,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-10-28 12:54:06,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-28 12:54:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:06,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:06,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:06,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:06,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:06,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 12:54:06,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:06,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:54:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:06,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-28 12:54:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:06,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:06,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 12:54:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:06,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 744 proven. 325 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2020-10-28 12:54:06,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956163470] [2020-10-28 12:54:06,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:06,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:06,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754382250] [2020-10-28 12:54:06,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:06,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:06,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:06,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:06,747 INFO L87 Difference]: Start difference. First operand 5587 states and 6200 transitions. Second operand 7 states. [2020-10-28 12:54:09,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:09,066 INFO L93 Difference]: Finished difference Result 11530 states and 12830 transitions. [2020-10-28 12:54:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:54:09,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 902 [2020-10-28 12:54:09,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:09,114 INFO L225 Difference]: With dead ends: 11530 [2020-10-28 12:54:09,114 INFO L226 Difference]: Without dead ends: 6315 [2020-10-28 12:54:09,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:54:09,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6315 states. [2020-10-28 12:54:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6315 to 5951. [2020-10-28 12:54:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5951 states. [2020-10-28 12:54:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 6598 transitions. [2020-10-28 12:54:09,293 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 6598 transitions. Word has length 902 [2020-10-28 12:54:09,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:09,294 INFO L481 AbstractCegarLoop]: Abstraction has 5951 states and 6598 transitions. [2020-10-28 12:54:09,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 6598 transitions. [2020-10-28 12:54:09,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2020-10-28 12:54:09,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:09,311 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:54:09,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:54:09,312 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:09,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:09,313 INFO L82 PathProgramCache]: Analyzing trace with hash 400925696, now seen corresponding path program 1 times [2020-10-28 12:54:09,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:09,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75158060] [2020-10-28 12:54:09,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:09,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:09,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:10,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:14,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:14,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 933 [2020-10-28 12:54:14,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:54:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 12:54:14,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:14,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:54:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:54:14,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:14,899 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:54:14,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:14,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:14,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:14,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:14,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:14,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:14,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:14,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:54:14,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:14,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:14,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:15,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:15,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:54:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:15,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:15,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-28 12:54:15,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:54:15,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:15,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:54:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:15,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:15,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:54:15,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:54:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:15,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:15,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:54:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:15,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:15,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:54:15,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:54:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:15,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:54:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:15,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:15,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:15,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:54:15,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:15,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:54:15,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:15,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 12:54:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:15,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2406 backedges. 751 proven. 325 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2020-10-28 12:54:16,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75158060] [2020-10-28 12:54:16,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:16,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:16,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593061399] [2020-10-28 12:54:16,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:16,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:16,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:16,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:16,181 INFO L87 Difference]: Start difference. First operand 5951 states and 6598 transitions. Second operand 7 states. [2020-10-28 12:54:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:18,506 INFO L93 Difference]: Finished difference Result 12086 states and 13403 transitions. [2020-10-28 12:54:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:54:18,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 909 [2020-10-28 12:54:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:18,527 INFO L225 Difference]: With dead ends: 12086 [2020-10-28 12:54:18,527 INFO L226 Difference]: Without dead ends: 5957 [2020-10-28 12:54:18,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:54:18,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2020-10-28 12:54:18,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 5955. [2020-10-28 12:54:18,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5955 states. [2020-10-28 12:54:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 6427 transitions. [2020-10-28 12:54:18,673 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 6427 transitions. Word has length 909 [2020-10-28 12:54:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:18,674 INFO L481 AbstractCegarLoop]: Abstraction has 5955 states and 6427 transitions. [2020-10-28 12:54:18,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:18,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 6427 transitions. [2020-10-28 12:54:18,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2020-10-28 12:54:18,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:18,692 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 12:54:18,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:54:18,693 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:18,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:18,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1059147812, now seen corresponding path program 1 times [2020-10-28 12:54:18,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:18,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619198373] [2020-10-28 12:54:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:18,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:19,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:20,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:23,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1016 [2020-10-28 12:54:23,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:54:23,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-28 12:54:23,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:23,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:54:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:54:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 12:54:23,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:24,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:54:24,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:24,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:24,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:24,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:24,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:54:24,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 12:54:24,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:24,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:54:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:24,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:54:24,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:24,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:54:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:24,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:54:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:24,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:24,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-28 12:54:24,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:54:24,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:24,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:54:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:24,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:24,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:24,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:54:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3020 backedges. 478 proven. 8 refuted. 0 times theorem prover too weak. 2534 trivial. 0 not checked. [2020-10-28 12:54:25,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619198373] [2020-10-28 12:54:25,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:25,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:54:25,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046757588] [2020-10-28 12:54:25,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:54:25,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:25,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:54:25,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:54:25,346 INFO L87 Difference]: Start difference. First operand 5955 states and 6427 transitions. Second operand 5 states. [2020-10-28 12:54:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:27,120 INFO L93 Difference]: Finished difference Result 13180 states and 14342 transitions. [2020-10-28 12:54:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:54:27,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 990 [2020-10-28 12:54:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:27,144 INFO L225 Difference]: With dead ends: 13180 [2020-10-28 12:54:27,144 INFO L226 Difference]: Without dead ends: 7415 [2020-10-28 12:54:27,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:54:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2020-10-28 12:54:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 7047. [2020-10-28 12:54:27,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7047 states. [2020-10-28 12:54:27,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7047 states to 7047 states and 7647 transitions. [2020-10-28 12:54:27,308 INFO L78 Accepts]: Start accepts. Automaton has 7047 states and 7647 transitions. Word has length 990 [2020-10-28 12:54:27,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:27,310 INFO L481 AbstractCegarLoop]: Abstraction has 7047 states and 7647 transitions. [2020-10-28 12:54:27,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:54:27,310 INFO L276 IsEmpty]: Start isEmpty. Operand 7047 states and 7647 transitions. [2020-10-28 12:54:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1078 [2020-10-28 12:54:27,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:27,331 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 1] [2020-10-28 12:54:27,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:54:27,331 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:27,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:27,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1087956392, now seen corresponding path program 1 times [2020-10-28 12:54:27,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:27,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407726604] [2020-10-28 12:54:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:27,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:27,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1105 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-28 12:54:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:32,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:32,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:32,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:32,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:32,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:32,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:54:32,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:32,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:32,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:32,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:32,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:32,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:32,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:32,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:32,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:32,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:32,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:32,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:54:32,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:32,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:32,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:32,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:32,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:32,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:32,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:32,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:54:32,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:32,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:32,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:32,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:32,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:32,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:54:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:32,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:33,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:33,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:33,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:54:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:33,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:33,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:33,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:33,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:54:33,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:33,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:54:33,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:33,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:54:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:54:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:33,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:54:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:33,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:33,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:54:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:33,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-28 12:54:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:33,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:33,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:33,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:54:33,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:33,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:54:33,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:33,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:33,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 12:54:33,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:33,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3747 backedges. 1688 proven. 237 refuted. 0 times theorem prover too weak. 1822 trivial. 0 not checked. [2020-10-28 12:54:34,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407726604] [2020-10-28 12:54:34,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:34,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 12:54:34,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462683915] [2020-10-28 12:54:34,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 12:54:34,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:34,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 12:54:34,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:54:34,440 INFO L87 Difference]: Start difference. First operand 7047 states and 7647 transitions. Second operand 10 states. [2020-10-28 12:54:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:38,805 INFO L93 Difference]: Finished difference Result 15932 states and 17403 transitions. [2020-10-28 12:54:38,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 12:54:38,806 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1077 [2020-10-28 12:54:38,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:38,847 INFO L225 Difference]: With dead ends: 15932 [2020-10-28 12:54:38,847 INFO L226 Difference]: Without dead ends: 9075 [2020-10-28 12:54:38,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-28 12:54:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9075 states. [2020-10-28 12:54:39,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9075 to 8887. [2020-10-28 12:54:39,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8887 states. [2020-10-28 12:54:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8887 states to 8887 states and 9722 transitions. [2020-10-28 12:54:39,032 INFO L78 Accepts]: Start accepts. Automaton has 8887 states and 9722 transitions. Word has length 1077 [2020-10-28 12:54:39,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:39,033 INFO L481 AbstractCegarLoop]: Abstraction has 8887 states and 9722 transitions. [2020-10-28 12:54:39,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 12:54:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 8887 states and 9722 transitions. [2020-10-28 12:54:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1224 [2020-10-28 12:54:39,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:39,056 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:54:39,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:54:39,057 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:39,058 INFO L82 PathProgramCache]: Analyzing trace with hash -571774036, now seen corresponding path program 1 times [2020-10-28 12:54:39,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:39,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105244538] [2020-10-28 12:54:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:39,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:39,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:40,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1253 [2020-10-28 12:54:44,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:54:44,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-28 12:54:44,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1076 [2020-10-28 12:54:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 12:54:44,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:44,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:44,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:54:44,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:54:44,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:54:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:44,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:54:44,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:54:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:44,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:44,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:44,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:44,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:54:44,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:44,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:54:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:45,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:45,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:45,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:45,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:54:45,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:45,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:54:45,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:54:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:45,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:45,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:45,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:54:45,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:54:45,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:45,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:45,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:54:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:45,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:45,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:45,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:54:45,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:54:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:45,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:54:45,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:45,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1058 [2020-10-28 12:54:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:45,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:45,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 12:54:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 12:54:45,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:45,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:54:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 1456 proven. 2 refuted. 0 times theorem prover too weak. 3407 trivial. 0 not checked. [2020-10-28 12:54:46,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105244538] [2020-10-28 12:54:46,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:46,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:54:46,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297237651] [2020-10-28 12:54:46,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:54:46,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:46,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:54:46,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:54:46,289 INFO L87 Difference]: Start difference. First operand 8887 states and 9722 transitions. Second operand 8 states. [2020-10-28 12:54:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:49,483 INFO L93 Difference]: Finished difference Result 17418 states and 19101 transitions. [2020-10-28 12:54:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:54:49,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1223 [2020-10-28 12:54:49,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:49,511 INFO L225 Difference]: With dead ends: 17418 [2020-10-28 12:54:49,511 INFO L226 Difference]: Without dead ends: 7245 [2020-10-28 12:54:49,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-28 12:54:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7245 states. [2020-10-28 12:54:49,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7245 to 5935. [2020-10-28 12:54:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5935 states. [2020-10-28 12:54:49,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 6173 transitions. [2020-10-28 12:54:49,666 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 6173 transitions. Word has length 1223 [2020-10-28 12:54:49,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:49,668 INFO L481 AbstractCegarLoop]: Abstraction has 5935 states and 6173 transitions. [2020-10-28 12:54:49,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:54:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 6173 transitions. [2020-10-28 12:54:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2020-10-28 12:54:49,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:49,692 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:54:49,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:54:49,693 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:49,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:49,693 INFO L82 PathProgramCache]: Analyzing trace with hash 372315920, now seen corresponding path program 1 times [2020-10-28 12:54:49,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:49,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812723521] [2020-10-28 12:54:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:50,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:50,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:53,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:53,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1313 [2020-10-28 12:54:55,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:54:55,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-28 12:54:55,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:55,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1105 [2020-10-28 12:54:55,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 12:54:55,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:55,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:54:55,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:55,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:54:55,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:55,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:54:55,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:55,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:54:55,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:54:55,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:54:55,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:54:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:55,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:54:55,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:54:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:55,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:54:55,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:54:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:54:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:54:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:54:55,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:54:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:55,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:55,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:54:55,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:55,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 12:54:55,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:55,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-28 12:54:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:55,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-28 12:54:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:55,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:56,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:56,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 12:54:56,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:56,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-28 12:54:56,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:56,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 12:54:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5138 backedges. 1560 proven. 2 refuted. 0 times theorem prover too weak. 3576 trivial. 0 not checked. [2020-10-28 12:54:57,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812723521] [2020-10-28 12:54:57,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:57,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:57,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243714165] [2020-10-28 12:54:57,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:57,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:57,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:57,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:57,389 INFO L87 Difference]: Start difference. First operand 5935 states and 6173 transitions. Second operand 7 states. [2020-10-28 12:54:59,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:59,551 INFO L93 Difference]: Finished difference Result 11864 states and 12357 transitions. [2020-10-28 12:54:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:54:59,554 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1283 [2020-10-28 12:54:59,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:59,574 INFO L225 Difference]: With dead ends: 11864 [2020-10-28 12:54:59,574 INFO L226 Difference]: Without dead ends: 6119 [2020-10-28 12:54:59,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:54:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6119 states. [2020-10-28 12:54:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6119 to 6117. [2020-10-28 12:54:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6117 states. [2020-10-28 12:54:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6117 states to 6117 states and 6360 transitions. [2020-10-28 12:54:59,702 INFO L78 Accepts]: Start accepts. Automaton has 6117 states and 6360 transitions. Word has length 1283 [2020-10-28 12:54:59,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:59,703 INFO L481 AbstractCegarLoop]: Abstraction has 6117 states and 6360 transitions. [2020-10-28 12:54:59,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6117 states and 6360 transitions. [2020-10-28 12:54:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2020-10-28 12:54:59,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:59,732 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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 12:54:59,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:54:59,733 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:59,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:59,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1847018084, now seen corresponding path program 1 times [2020-10-28 12:54:59,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:59,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112400795] [2020-10-28 12:54:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:00,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:00,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:00,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:03,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1364 [2020-10-28 12:55:05,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5107 [2020-10-28 12:55:05,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1123 [2020-10-28 12:55:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:55:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,435 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:55:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:05,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:05,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:05,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:55:05,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:05,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:55:05,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:05,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:55:05,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:55:05,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:55:05,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:55:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:05,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:55:05,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:55:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:05,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:55:05,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:55:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:05,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:55:05,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:05,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:55:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:05,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:05,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:06,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:55:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:06,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:06,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:55:06,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:06,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-28 12:55:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:06,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:06,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:06,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 12:55:06,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:06,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-28 12:55:06,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:06,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:06,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:06,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:06,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-28 12:55:06,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5269 backedges. 1644 proven. 2 refuted. 0 times theorem prover too weak. 3623 trivial. 0 not checked. [2020-10-28 12:55:07,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112400795] [2020-10-28 12:55:07,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:07,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:07,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964509348] [2020-10-28 12:55:07,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:07,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:07,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:07,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:07,717 INFO L87 Difference]: Start difference. First operand 6117 states and 6360 transitions. Second operand 7 states. [2020-10-28 12:55:10,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:10,043 INFO L93 Difference]: Finished difference Result 12988 states and 13558 transitions. [2020-10-28 12:55:10,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:55:10,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1334 [2020-10-28 12:55:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:10,079 INFO L225 Difference]: With dead ends: 12988 [2020-10-28 12:55:10,079 INFO L226 Difference]: Without dead ends: 6875 [2020-10-28 12:55:10,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:55:10,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6875 states. [2020-10-28 12:55:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6875 to 6305. [2020-10-28 12:55:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6305 states. [2020-10-28 12:55:10,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6305 states to 6305 states and 6550 transitions. [2020-10-28 12:55:10,445 INFO L78 Accepts]: Start accepts. Automaton has 6305 states and 6550 transitions. Word has length 1334 [2020-10-28 12:55:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:10,446 INFO L481 AbstractCegarLoop]: Abstraction has 6305 states and 6550 transitions. [2020-10-28 12:55:10,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 6305 states and 6550 transitions. [2020-10-28 12:55:10,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1381 [2020-10-28 12:55:10,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:10,477 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 12:55:10,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:55:10,477 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:10,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:10,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1613921116, now seen corresponding path program 1 times [2020-10-28 12:55:10,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:10,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939524523] [2020-10-28 12:55:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:10,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:11,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:13,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:14,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:15,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1412 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1204 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 12:55:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:16,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:55:16,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:16,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:16,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:55:16,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:16,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:55:16,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:55:16,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:16,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:55:16,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:55:16,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:55:16,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:55:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:16,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:55:16,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:55:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:16,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:55:16,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:55:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:16,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:55:16,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:55:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:55:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:55:16,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:55:16,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:16,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-28 12:55:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:16,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:55:16,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:16,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:55:16,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:16,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:55:16,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:16,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-28 12:55:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 12:55:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6044 backedges. 1713 proven. 2 refuted. 0 times theorem prover too weak. 4329 trivial. 0 not checked. [2020-10-28 12:55:18,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939524523] [2020-10-28 12:55:18,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:18,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:18,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813099974] [2020-10-28 12:55:18,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:18,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:18,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:18,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:18,448 INFO L87 Difference]: Start difference. First operand 6305 states and 6550 transitions. Second operand 7 states. [2020-10-28 12:55:20,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:20,857 INFO L93 Difference]: Finished difference Result 12786 states and 13281 transitions. [2020-10-28 12:55:20,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:55:20,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1380 [2020-10-28 12:55:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:20,878 INFO L225 Difference]: With dead ends: 12786 [2020-10-28 12:55:20,878 INFO L226 Difference]: Without dead ends: 6487 [2020-10-28 12:55:20,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:55:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6487 states. [2020-10-28 12:55:20,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6487 to 6119. [2020-10-28 12:55:20,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6119 states. [2020-10-28 12:55:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6119 states to 6119 states and 6334 transitions. [2020-10-28 12:55:21,005 INFO L78 Accepts]: Start accepts. Automaton has 6119 states and 6334 transitions. Word has length 1380 [2020-10-28 12:55:21,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:21,007 INFO L481 AbstractCegarLoop]: Abstraction has 6119 states and 6334 transitions. [2020-10-28 12:55:21,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:21,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6119 states and 6334 transitions. [2020-10-28 12:55:21,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1601 [2020-10-28 12:55:21,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:21,043 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 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, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 12:55:21,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:55:21,044 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:21,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:21,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1364569812, now seen corresponding path program 1 times [2020-10-28 12:55:21,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:21,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038414093] [2020-10-28 12:55:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:21,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:22,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:22,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:22,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:26,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1634 [2020-10-28 12:55:26,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-28 12:55:26,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:26,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1212 [2020-10-28 12:55:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:55:26,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:26,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:26,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:26,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:26,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:26,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:26,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:26,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:26,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:26,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:26,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:26,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:55:26,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:26,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:26,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:26,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:26,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:26,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:26,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:26,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 12:55:26,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:26,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:26,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:26,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:26,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:27,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:55:27,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:55:27,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:55:27,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:55:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:27,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:55:27,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:55:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:27,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:55:27,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:55:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:27,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:55:27,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:55:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:55:27,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:55:27,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:55:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:55:27,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:55:27,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-28 12:55:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:55:27,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:55:27,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-28 12:55:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1192 [2020-10-28 12:55:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:28,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:28,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:28,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-28 12:55:28,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:28,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:28,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:28,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1371 [2020-10-28 12:55:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:28,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:28,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7668 backedges. 1887 proven. 174 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2020-10-28 12:55:29,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038414093] [2020-10-28 12:55:29,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:29,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:29,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159514829] [2020-10-28 12:55:29,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:29,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:29,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:29,729 INFO L87 Difference]: Start difference. First operand 6119 states and 6334 transitions. Second operand 7 states. [2020-10-28 12:55:32,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:32,551 INFO L93 Difference]: Finished difference Result 11300 states and 11689 transitions. [2020-10-28 12:55:32,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:55:32,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1600 [2020-10-28 12:55:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:32,561 INFO L225 Difference]: With dead ends: 11300 [2020-10-28 12:55:32,561 INFO L226 Difference]: Without dead ends: 2775 [2020-10-28 12:55:32,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 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 12:55:32,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2020-10-28 12:55:32,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2775. [2020-10-28 12:55:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2775 states. [2020-10-28 12:55:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 2811 transitions. [2020-10-28 12:55:32,613 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 2811 transitions. Word has length 1600 [2020-10-28 12:55:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:32,617 INFO L481 AbstractCegarLoop]: Abstraction has 2775 states and 2811 transitions. [2020-10-28 12:55:32,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:32,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 2811 transitions. [2020-10-28 12:55:32,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1727 [2020-10-28 12:55:32,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:32,649 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 12:55:32,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:55:32,649 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:32,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1177294552, now seen corresponding path program 1 times [2020-10-28 12:55:32,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:32,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127081250] [2020-10-28 12:55:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:33,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:34,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:35,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:36,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1762 [2020-10-28 12:55:38,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:55:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5293 [2020-10-28 12:55:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-28 12:55:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 267 [2020-10-28 12:55:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:38,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:55:38,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:38,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:55:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:55:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:55:38,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:55:38,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:55:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:55:38,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:55:38,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:55:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:55:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:55:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:38,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:55:38,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:55:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:38,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:38,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:38,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:55:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:39,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:55:39,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:39,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:55:39,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:39,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:39,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:39,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:55:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:39,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:39,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:55:39,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:55:39,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:39,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:39,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:55:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:39,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:39,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:55:39,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:39,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:55:39,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:39,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-28 12:55:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:39,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:55:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:39,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:39,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:55:39,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:55:39,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-28 12:55:39,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:39,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:55:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:39,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1592 [2020-10-28 12:55:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:39,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:39,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:55:39,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:55:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:39,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 12:55:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 8879 backedges. 2984 proven. 6 refuted. 0 times theorem prover too weak. 5889 trivial. 0 not checked. [2020-10-28 12:55:41,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127081250] [2020-10-28 12:55:41,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:41,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:41,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966965213] [2020-10-28 12:55:41,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:41,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:41,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:41,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:41,367 INFO L87 Difference]: Start difference. First operand 2775 states and 2811 transitions. Second operand 7 states. [2020-10-28 12:55:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:43,295 INFO L93 Difference]: Finished difference Result 4985 states and 5054 transitions. [2020-10-28 12:55:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:55:43,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1726 [2020-10-28 12:55:43,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:43,300 INFO L225 Difference]: With dead ends: 4985 [2020-10-28 12:55:43,300 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:55:43,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:55:43,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:55:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:55:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:55:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:55:43,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1726 [2020-10-28 12:55:43,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:43,305 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:55:43,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:55:43,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:55:43,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:55:43,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:55:44,194 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 222 [2020-10-28 12:55:44,430 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-10-28 12:55:44,647 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 91 [2020-10-28 12:55:45,851 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 222 [2020-10-28 12:55:47,951 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 200 DAG size of output: 89 [2020-10-28 12:55:48,071 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 25 [2020-10-28 12:55:53,504 WARN L193 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 321 DAG size of output: 128 [2020-10-28 12:55:55,586 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 200 DAG size of output: 89