/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:38:19,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:38:19,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:38:19,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:38:19,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:38:19,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:38:19,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:38:19,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:38:19,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:38:19,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:38:19,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:38:19,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:38:19,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:38:19,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:38:19,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:38:19,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:38:19,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:38:19,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:38:19,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:38:19,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:38:19,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:38:19,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:38:19,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:38:19,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:38:19,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:38:19,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:38:19,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:38:19,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:38:19,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:38:19,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:38:19,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:38:19,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:38:19,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:38:19,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:38:19,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:38:19,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:38:19,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:38:19,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:38:19,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:38:19,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:38:19,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:38:19,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 07:38:19,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:38:19,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:38:19,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:38:19,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:38:19,987 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:38:19,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:38:19,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:38:19,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:38:19,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:38:19,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:38:19,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:38:19,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:38:19,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:38:19,990 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:38:19,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:38:19,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:38:19,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:38:19,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:38:19,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:38:19,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:38:19,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:38:19,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:38:19,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:38:19,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:38:19,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:38:19,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:38:19,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:38:19,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:38:19,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:38:19,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:38:20,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:38:20,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:38:20,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:38:20,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:38:20,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:38:20,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label55.c [2020-10-29 07:38:20,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/570fdd367/b930c599bc0b432298e56e00effdb504/FLAGffd8f5ae4 [2020-10-29 07:38:21,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:38:21,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label55.c [2020-10-29 07:38:21,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/570fdd367/b930c599bc0b432298e56e00effdb504/FLAGffd8f5ae4 [2020-10-29 07:38:21,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/570fdd367/b930c599bc0b432298e56e00effdb504 [2020-10-29 07:38:21,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:38:21,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:38:21,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:38:21,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:38:21,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:38:21,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:38:21" (1/1) ... [2020-10-29 07:38:21,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590eac70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:21, skipping insertion in model container [2020-10-29 07:38:21,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:38:21" (1/1) ... [2020-10-29 07:38:21,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:38:21,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:38:21,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:38:22,020 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:38:22,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:38:22,196 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:38:22,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22 WrapperNode [2020-10-29 07:38:22,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:38:22,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:38:22,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:38:22,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:38:22,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... [2020-10-29 07:38:22,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... [2020-10-29 07:38:22,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... [2020-10-29 07:38:22,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... [2020-10-29 07:38:22,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... [2020-10-29 07:38:22,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... [2020-10-29 07:38:22,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... [2020-10-29 07:38:22,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:38:22,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:38:22,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:38:22,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:38:22,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:38:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:38:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:38:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:38:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:38:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:38:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:38:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:38:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:38:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:38:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:38:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:38:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:38:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:38:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:38:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:38:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:38:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:38:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:38:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:38:23,814 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:38:23,814 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:38:23,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:38:23 BoogieIcfgContainer [2020-10-29 07:38:23,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:38:23,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:38:23,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:38:23,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:38:23,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:38:21" (1/3) ... [2020-10-29 07:38:23,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a4caae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:38:23, skipping insertion in model container [2020-10-29 07:38:23,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:38:22" (2/3) ... [2020-10-29 07:38:23,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a4caae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:38:23, skipping insertion in model container [2020-10-29 07:38:23,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:38:23" (3/3) ... [2020-10-29 07:38:23,826 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label55.c [2020-10-29 07:38:23,839 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:38:23,845 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:38:23,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:38:23,891 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:38:23,891 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:38:23,891 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:38:23,892 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:38:23,892 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:38:23,892 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:38:23,892 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:38:23,892 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:38:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-29 07:38:23,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-29 07:38:23,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:23,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:23,971 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:23,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:23,984 INFO L82 PathProgramCache]: Analyzing trace with hash -435430920, now seen corresponding path program 1 times [2020-10-29 07:38:23,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:23,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975923537] [2020-10-29 07:38:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:24,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:24,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:24,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:38:24,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:24,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-29 07:38:24,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:24,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:24,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:38:24,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:38:24,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 07:38:24,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 07:38:24,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:24,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:24,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:24,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:24,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:38:24,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:24,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:24,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:38:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:25,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:38:25,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975923537] [2020-10-29 07:38:25,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:38:25,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:38:25,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635703762] [2020-10-29 07:38:25,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:38:25,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:25,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:38:25,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:38:25,060 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-29 07:38:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:27,237 INFO L93 Difference]: Finished difference Result 703 states and 1247 transitions. [2020-10-29 07:38:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:38:27,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-10-29 07:38:27,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:27,256 INFO L225 Difference]: With dead ends: 703 [2020-10-29 07:38:27,257 INFO L226 Difference]: Without dead ends: 381 [2020-10-29 07:38:27,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:38:27,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-29 07:38:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2020-10-29 07:38:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-29 07:38:27,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 605 transitions. [2020-10-29 07:38:27,357 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 605 transitions. Word has length 64 [2020-10-29 07:38:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:27,357 INFO L481 AbstractCegarLoop]: Abstraction has 375 states and 605 transitions. [2020-10-29 07:38:27,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:38:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 605 transitions. [2020-10-29 07:38:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 07:38:27,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:27,365 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:27,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:38:27,365 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:27,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1919932772, now seen corresponding path program 1 times [2020-10-29 07:38:27,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:27,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169459665] [2020-10-29 07:38:27,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:27,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:27,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:28,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:28,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 07:38:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:38:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1420 [2020-10-29 07:38:28,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:28,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:28,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-29 07:38:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 07:38:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:38:28,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:28,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:28,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:28,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:28,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:38:28,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:28,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:28,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:28,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:28,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:28,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:38:28,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:29,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:29,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:38:29,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:29,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 07:38:29,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:29,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:29,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 07:38:29,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:29,142 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:38:29,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169459665] [2020-10-29 07:38:29,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:29,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:38:29,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583692347] [2020-10-29 07:38:29,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:38:29,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:29,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:38:29,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:38:29,150 INFO L87 Difference]: Start difference. First operand 375 states and 605 transitions. Second operand 5 states. [2020-10-29 07:38:31,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:31,354 INFO L93 Difference]: Finished difference Result 1118 states and 1827 transitions. [2020-10-29 07:38:31,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:38:31,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-29 07:38:31,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:31,368 INFO L225 Difference]: With dead ends: 1118 [2020-10-29 07:38:31,368 INFO L226 Difference]: Without dead ends: 749 [2020-10-29 07:38:31,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:38:31,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-10-29 07:38:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 561. [2020-10-29 07:38:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-29 07:38:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 844 transitions. [2020-10-29 07:38:31,411 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 844 transitions. Word has length 133 [2020-10-29 07:38:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:31,412 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 844 transitions. [2020-10-29 07:38:31,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:38:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 844 transitions. [2020-10-29 07:38:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-29 07:38:31,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:31,417 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:31,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:38:31,417 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:31,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:31,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1525474740, now seen corresponding path program 1 times [2020-10-29 07:38:31,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:31,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761979363] [2020-10-29 07:38:31,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:32,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:32,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:32,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:32,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-29 07:38:32,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:38:32,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1368 [2020-10-29 07:38:32,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:32,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:38:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:38:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 07:38:32,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:32,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:32,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:33,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:33,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:33,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:33,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:38:33,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:33,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:33,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:33,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:33,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:38:33,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:33,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:33,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:33,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:33,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:33,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:38:33,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:38:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 07:38:33,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:33,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:38:33,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 07:38:33,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761979363] [2020-10-29 07:38:33,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:33,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 07:38:33,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665660916] [2020-10-29 07:38:33,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:33,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:33,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:33,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:33,309 INFO L87 Difference]: Start difference. First operand 561 states and 844 transitions. Second operand 7 states. [2020-10-29 07:38:35,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:35,942 INFO L93 Difference]: Finished difference Result 1544 states and 2422 transitions. [2020-10-29 07:38:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:38:35,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-29 07:38:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:35,961 INFO L225 Difference]: With dead ends: 1544 [2020-10-29 07:38:35,961 INFO L226 Difference]: Without dead ends: 989 [2020-10-29 07:38:35,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:38:35,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2020-10-29 07:38:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 939. [2020-10-29 07:38:36,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2020-10-29 07:38:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1292 transitions. [2020-10-29 07:38:36,046 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1292 transitions. Word has length 144 [2020-10-29 07:38:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:36,049 INFO L481 AbstractCegarLoop]: Abstraction has 939 states and 1292 transitions. [2020-10-29 07:38:36,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1292 transitions. [2020-10-29 07:38:36,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-29 07:38:36,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:36,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:36,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:38:36,067 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:36,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:36,068 INFO L82 PathProgramCache]: Analyzing trace with hash 763284296, now seen corresponding path program 1 times [2020-10-29 07:38:36,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:36,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741706971] [2020-10-29 07:38:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:36,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:36,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:36,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:37,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:37,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-29 07:38:37,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:38:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1808 [2020-10-29 07:38:37,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:37,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:38:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:38:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 07:38:37,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:38,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:38,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:38,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:38,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:38,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:38,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 07:38:38,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:38,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:38:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:38,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:38,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:38,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:38,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:38:38,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 07:38:38,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:38,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:38:38,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 07:38:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:38:38,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741706971] [2020-10-29 07:38:38,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:38:38,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:38:38,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660788825] [2020-10-29 07:38:38,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:38,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:38,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:38,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:38,300 INFO L87 Difference]: Start difference. First operand 939 states and 1292 transitions. Second operand 7 states. [2020-10-29 07:38:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:40,667 INFO L93 Difference]: Finished difference Result 2264 states and 3194 transitions. [2020-10-29 07:38:40,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:38:40,670 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2020-10-29 07:38:40,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:40,677 INFO L225 Difference]: With dead ends: 2264 [2020-10-29 07:38:40,678 INFO L226 Difference]: Without dead ends: 1331 [2020-10-29 07:38:40,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:38:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2020-10-29 07:38:40,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1317. [2020-10-29 07:38:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1317 states. [2020-10-29 07:38:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1755 transitions. [2020-10-29 07:38:40,727 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1755 transitions. Word has length 147 [2020-10-29 07:38:40,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:40,727 INFO L481 AbstractCegarLoop]: Abstraction has 1317 states and 1755 transitions. [2020-10-29 07:38:40,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:40,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1755 transitions. [2020-10-29 07:38:40,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-29 07:38:40,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:40,732 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:40,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:38:40,732 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:40,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:40,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2020613476, now seen corresponding path program 1 times [2020-10-29 07:38:40,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:40,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774914798] [2020-10-29 07:38:40,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:40,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:40,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:41,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:45,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:45,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-29 07:38:45,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:38:45,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 07:38:45,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:45,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:45,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:45,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-29 07:38:45,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:38:45,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:45,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:45,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:45,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:45,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:45,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:45,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:38:45,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:45,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:45,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:45,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:45,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:45,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:45,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:45,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:45,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:38:46,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 07:38:46,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 07:38:46,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 07:38:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:38:46,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 07:38:46,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:38:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:38:46,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774914798] [2020-10-29 07:38:46,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:46,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:46,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137014463] [2020-10-29 07:38:46,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:46,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:46,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:46,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:46,489 INFO L87 Difference]: Start difference. First operand 1317 states and 1755 transitions. Second operand 7 states. [2020-10-29 07:38:49,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:49,177 INFO L93 Difference]: Finished difference Result 2654 states and 3710 transitions. [2020-10-29 07:38:49,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:38:49,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-10-29 07:38:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:49,191 INFO L225 Difference]: With dead ends: 2654 [2020-10-29 07:38:49,191 INFO L226 Difference]: Without dead ends: 1143 [2020-10-29 07:38:49,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:38:49,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2020-10-29 07:38:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1119. [2020-10-29 07:38:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-10-29 07:38:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1262 transitions. [2020-10-29 07:38:49,247 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1262 transitions. Word has length 220 [2020-10-29 07:38:49,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:49,247 INFO L481 AbstractCegarLoop]: Abstraction has 1119 states and 1262 transitions. [2020-10-29 07:38:49,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:49,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1262 transitions. [2020-10-29 07:38:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2020-10-29 07:38:49,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:49,257 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:49,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:38:49,258 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:49,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:49,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1994485312, now seen corresponding path program 1 times [2020-10-29 07:38:49,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:49,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867427136] [2020-10-29 07:38:49,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:49,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:49,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:49,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:50,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:53,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:54,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:54,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 448 [2020-10-29 07:38:54,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:38:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:38:54,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:54,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-29 07:38:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:38:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:54,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:54,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:54,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:54,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:54,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:38:54,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:54,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:54,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:54,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:54,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:54,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:54,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:54,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 07:38:54,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:54,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:38:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:54,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:38:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:54,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:55,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:55,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:55,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:55,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-29 07:38:55,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:55,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:55,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-29 07:38:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:55,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:55,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:38:55,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:38:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:55,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:38:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:55,504 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 278 proven. 79 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-29 07:38:55,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867427136] [2020-10-29 07:38:55,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:55,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:55,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103362789] [2020-10-29 07:38:55,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:55,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:55,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:55,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:55,508 INFO L87 Difference]: Start difference. First operand 1119 states and 1262 transitions. Second operand 7 states. [2020-10-29 07:38:57,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:57,353 INFO L93 Difference]: Finished difference Result 2816 states and 3294 transitions. [2020-10-29 07:38:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:38:57,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 432 [2020-10-29 07:38:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:57,365 INFO L225 Difference]: With dead ends: 2816 [2020-10-29 07:38:57,365 INFO L226 Difference]: Without dead ends: 1885 [2020-10-29 07:38:57,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:38:57,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2020-10-29 07:38:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1687. [2020-10-29 07:38:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2020-10-29 07:38:57,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 1904 transitions. [2020-10-29 07:38:57,421 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 1904 transitions. Word has length 432 [2020-10-29 07:38:57,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:57,422 INFO L481 AbstractCegarLoop]: Abstraction has 1687 states and 1904 transitions. [2020-10-29 07:38:57,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:57,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 1904 transitions. [2020-10-29 07:38:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2020-10-29 07:38:57,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:57,433 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 07:38:57,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:38:57,433 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:57,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:57,434 INFO L82 PathProgramCache]: Analyzing trace with hash -826551184, now seen corresponding path program 1 times [2020-10-29 07:38:57,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:57,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043603933] [2020-10-29 07:38:57,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:57,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:57,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:58,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:02,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:02,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-29 07:39:02,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:39:02,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 07:39:02,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:02,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-29 07:39:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:39:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:02,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:02,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:02,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:02,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:02,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:02,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:39:02,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:02,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:02,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:02,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:02,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:02,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:02,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:39:02,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:02,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 07:39:02,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:02,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:39:02,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:02,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:39:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:02,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:03,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-29 07:39:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:03,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:39:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:03,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-29 07:39:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:03,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:03,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:39:03,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:03,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:39:03,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:03,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:39:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:03,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:03,531 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 302 proven. 79 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-29 07:39:03,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043603933] [2020-10-29 07:39:03,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:03,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:03,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147860502] [2020-10-29 07:39:03,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:03,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:03,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:03,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:03,534 INFO L87 Difference]: Start difference. First operand 1687 states and 1904 transitions. Second operand 7 states. [2020-10-29 07:39:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:05,541 INFO L93 Difference]: Finished difference Result 4546 states and 5424 transitions. [2020-10-29 07:39:05,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:39:05,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 456 [2020-10-29 07:39:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:05,561 INFO L225 Difference]: With dead ends: 4546 [2020-10-29 07:39:05,562 INFO L226 Difference]: Without dead ends: 2865 [2020-10-29 07:39:05,568 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 [2020-10-29 07:39:05,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2020-10-29 07:39:05,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2621. [2020-10-29 07:39:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2621 states. [2020-10-29 07:39:05,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 2928 transitions. [2020-10-29 07:39:05,667 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 2928 transitions. Word has length 456 [2020-10-29 07:39:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:05,668 INFO L481 AbstractCegarLoop]: Abstraction has 2621 states and 2928 transitions. [2020-10-29 07:39:05,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 2928 transitions. [2020-10-29 07:39:05,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-10-29 07:39:05,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:05,687 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:05,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:39:05,687 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:05,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:05,688 INFO L82 PathProgramCache]: Analyzing trace with hash -901084352, now seen corresponding path program 1 times [2020-10-29 07:39:05,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:05,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517293212] [2020-10-29 07:39:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:05,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:05,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:06,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:06,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:10,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:10,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 609 [2020-10-29 07:39:10,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:39:10,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 07:39:10,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:10,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:10,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:10,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-29 07:39:10,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-29 07:39:10,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:39:10,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:10,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:10,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:10,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:10,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:39:10,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:10,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:10,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:10,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:11,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:11,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:11,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:11,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 07:39:11,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:11,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:11,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:11,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:11,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:39:11,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:11,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:39:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:11,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:11,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:11,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-29 07:39:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:11,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2020-10-29 07:39:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:11,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:11,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:11,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:11,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:11,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 07:39:11,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:11,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:39:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:11,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:11,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-29 07:39:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:11,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:11,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:39:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:39:11,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:11,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:39:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 338 proven. 235 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-29 07:39:11,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517293212] [2020-10-29 07:39:11,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:11,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:11,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667037096] [2020-10-29 07:39:11,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:11,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:11,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:11,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:11,905 INFO L87 Difference]: Start difference. First operand 2621 states and 2928 transitions. Second operand 7 states. [2020-10-29 07:39:13,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:13,675 INFO L93 Difference]: Finished difference Result 5426 states and 6198 transitions. [2020-10-29 07:39:13,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:39:13,678 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 591 [2020-10-29 07:39:13,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:13,696 INFO L225 Difference]: With dead ends: 5426 [2020-10-29 07:39:13,696 INFO L226 Difference]: Without dead ends: 3177 [2020-10-29 07:39:13,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:39:13,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2020-10-29 07:39:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 3175. [2020-10-29 07:39:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3175 states. [2020-10-29 07:39:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 3548 transitions. [2020-10-29 07:39:13,824 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 3548 transitions. Word has length 591 [2020-10-29 07:39:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:13,824 INFO L481 AbstractCegarLoop]: Abstraction has 3175 states and 3548 transitions. [2020-10-29 07:39:13,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 3548 transitions. [2020-10-29 07:39:13,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2020-10-29 07:39:13,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:13,840 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 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, 1] [2020-10-29 07:39:13,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:39:13,841 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:13,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:13,841 INFO L82 PathProgramCache]: Analyzing trace with hash 2116465180, now seen corresponding path program 1 times [2020-10-29 07:39:13,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:13,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789918481] [2020-10-29 07:39:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:14,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:14,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:15,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 763 [2020-10-29 07:39:19,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:39:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-29 07:39:19,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-29 07:39:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:39:19,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:19,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:19,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:19,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:39:19,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:19,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:39:19,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:19,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:19,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:39:19,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:19,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:19,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:39:19,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:19,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 07:39:19,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:19,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:19,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:39:19,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:19,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-29 07:39:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:39:19,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 07:39:19,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:39:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:19,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2020-10-29 07:39:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:19,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:19,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:19,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 07:39:19,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:19,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:39:19,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:19,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:19,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 07:39:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:19,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:39:19,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:19,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:39:19,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:19,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:39:19,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:19,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 538 proven. 253 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2020-10-29 07:39:20,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789918481] [2020-10-29 07:39:20,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:20,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:20,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895312234] [2020-10-29 07:39:20,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:20,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:20,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:20,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:20,377 INFO L87 Difference]: Start difference. First operand 3175 states and 3548 transitions. Second operand 7 states. [2020-10-29 07:39:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:22,371 INFO L93 Difference]: Finished difference Result 6354 states and 7152 transitions. [2020-10-29 07:39:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:39:22,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 743 [2020-10-29 07:39:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:22,389 INFO L225 Difference]: With dead ends: 6354 [2020-10-29 07:39:22,389 INFO L226 Difference]: Without dead ends: 3365 [2020-10-29 07:39:22,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:39:22,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2020-10-29 07:39:22,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 3181. [2020-10-29 07:39:22,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2020-10-29 07:39:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 3538 transitions. [2020-10-29 07:39:22,484 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 3538 transitions. Word has length 743 [2020-10-29 07:39:22,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:22,485 INFO L481 AbstractCegarLoop]: Abstraction has 3181 states and 3538 transitions. [2020-10-29 07:39:22,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 3538 transitions. [2020-10-29 07:39:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2020-10-29 07:39:22,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:22,496 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:22,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:39:22,496 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:22,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:22,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1638310356, now seen corresponding path program 1 times [2020-10-29 07:39:22,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:22,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106300569] [2020-10-29 07:39:22,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:26,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:26,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:27,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:27,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-29 07:39:27,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:39:27,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-29 07:39:27,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:27,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:27,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:27,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:27,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:27,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:27,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:39:27,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:27,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:27,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:27,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:27,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:27,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:27,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:27,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:39:27,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:27,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:27,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:27,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:27,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:27,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:27,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:27,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:27,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:27,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:27,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:39:27,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:27,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:27,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:39:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:39:28,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:39:28,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:39:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:39:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:39:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:39:28,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-29 07:39:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:39:28,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:39:28,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:39:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 850 proven. 79 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2020-10-29 07:39:28,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106300569] [2020-10-29 07:39:28,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:28,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:28,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599424520] [2020-10-29 07:39:28,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:28,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:28,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:28,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:28,917 INFO L87 Difference]: Start difference. First operand 3181 states and 3538 transitions. Second operand 7 states. [2020-10-29 07:39:30,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:30,816 INFO L93 Difference]: Finished difference Result 7088 states and 8051 transitions. [2020-10-29 07:39:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:39:30,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 818 [2020-10-29 07:39:30,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:30,838 INFO L225 Difference]: With dead ends: 7088 [2020-10-29 07:39:30,838 INFO L226 Difference]: Without dead ends: 4279 [2020-10-29 07:39:30,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:39:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4279 states. [2020-10-29 07:39:30,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4279 to 4095. [2020-10-29 07:39:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4095 states. [2020-10-29 07:39:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4095 states to 4095 states and 4598 transitions. [2020-10-29 07:39:30,951 INFO L78 Accepts]: Start accepts. Automaton has 4095 states and 4598 transitions. Word has length 818 [2020-10-29 07:39:30,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:30,953 INFO L481 AbstractCegarLoop]: Abstraction has 4095 states and 4598 transitions. [2020-10-29 07:39:30,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:30,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4095 states and 4598 transitions. [2020-10-29 07:39:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2020-10-29 07:39:30,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:30,967 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:30,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:39:30,967 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:30,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:30,968 INFO L82 PathProgramCache]: Analyzing trace with hash 374731700, now seen corresponding path program 1 times [2020-10-29 07:39:30,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:30,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216174378] [2020-10-29 07:39:30,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:31,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:31,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:32,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:34,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:36,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 932 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-29 07:39:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:36,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:36,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:36,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:36,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:36,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:39:36,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:36,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:36,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:39:36,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:36,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:36,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:36,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:36,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:39:36,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:36,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:36,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:36,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:36,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:36,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:36,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:39:36,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:36,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:36,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:39:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:36,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:36,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:36,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:39:36,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:39:36,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:36,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:36,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:36,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:39:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:36,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:36,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:36,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:39:36,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:39:36,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:36,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:36,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:39:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:36,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:36,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:39:36,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 07:39:36,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:36,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:39:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:36,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:39:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:36,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:37,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:37,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:37,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:37,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-29 07:39:37,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:37,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:37,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:39:37,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:37,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:39:37,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:39:37,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:39:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:37,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:37,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 07:39:37,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2477 backedges. 1417 proven. 6 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2020-10-29 07:39:37,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216174378] [2020-10-29 07:39:37,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:37,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:39:37,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367125380] [2020-10-29 07:39:37,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:39:37,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:37,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:39:37,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:39:37,729 INFO L87 Difference]: Start difference. First operand 4095 states and 4598 transitions. Second operand 9 states. [2020-10-29 07:39:41,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:41,061 INFO L93 Difference]: Finished difference Result 9487 states and 10859 transitions. [2020-10-29 07:39:41,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 07:39:41,068 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 908 [2020-10-29 07:39:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:41,099 INFO L225 Difference]: With dead ends: 9487 [2020-10-29 07:39:41,100 INFO L226 Difference]: Without dead ends: 5764 [2020-10-29 07:39:41,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-29 07:39:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5764 states. [2020-10-29 07:39:41,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5764 to 5573. [2020-10-29 07:39:41,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5573 states. [2020-10-29 07:39:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5573 states to 5573 states and 6372 transitions. [2020-10-29 07:39:41,250 INFO L78 Accepts]: Start accepts. Automaton has 5573 states and 6372 transitions. Word has length 908 [2020-10-29 07:39:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:41,252 INFO L481 AbstractCegarLoop]: Abstraction has 5573 states and 6372 transitions. [2020-10-29 07:39:41,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:39:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states and 6372 transitions. [2020-10-29 07:39:41,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2020-10-29 07:39:41,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:41,269 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:41,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 07:39:41,270 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:41,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:41,270 INFO L82 PathProgramCache]: Analyzing trace with hash 582903236, now seen corresponding path program 1 times [2020-10-29 07:39:41,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:41,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872583156] [2020-10-29 07:39:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:41,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:41,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:41,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1034 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 07:39:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:46,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:46,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:46,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:46,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:46,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:39:46,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:46,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:46,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:46,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:46,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:46,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:46,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:46,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:46,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:46,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:46,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:46,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:46,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:39:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:46,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:46,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:46,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:39:46,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:46,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:39:46,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:46,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:46,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:46,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:39:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:46,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:46,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:46,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:39:46,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:46,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:39:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:46,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:46,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:39:46,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:39:46,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:46,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:39:46,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:47,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:39:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:47,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:47,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:47,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:47,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:39:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:47,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:39:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:47,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:47,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-29 07:39:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:47,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:47,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:39:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:47,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 803 proven. 221 refuted. 0 times theorem prover too weak. 2165 trivial. 0 not checked. [2020-10-29 07:39:47,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872583156] [2020-10-29 07:39:47,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:47,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:47,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612163219] [2020-10-29 07:39:47,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:47,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:47,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:47,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:47,877 INFO L87 Difference]: Start difference. First operand 5573 states and 6372 transitions. Second operand 7 states. [2020-10-29 07:39:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:49,644 INFO L93 Difference]: Finished difference Result 12242 states and 14283 transitions. [2020-10-29 07:39:49,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:39:49,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1008 [2020-10-29 07:39:49,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:49,687 INFO L225 Difference]: With dead ends: 12242 [2020-10-29 07:39:49,687 INFO L226 Difference]: Without dead ends: 6859 [2020-10-29 07:39:49,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:39:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2020-10-29 07:39:49,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6859. [2020-10-29 07:39:49,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6859 states. [2020-10-29 07:39:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6859 states to 6859 states and 7976 transitions. [2020-10-29 07:39:49,865 INFO L78 Accepts]: Start accepts. Automaton has 6859 states and 7976 transitions. Word has length 1008 [2020-10-29 07:39:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:49,866 INFO L481 AbstractCegarLoop]: Abstraction has 6859 states and 7976 transitions. [2020-10-29 07:39:49,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6859 states and 7976 transitions. [2020-10-29 07:39:49,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2020-10-29 07:39:49,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:49,885 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:49,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 07:39:49,886 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:49,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:49,887 INFO L82 PathProgramCache]: Analyzing trace with hash -99355012, now seen corresponding path program 1 times [2020-10-29 07:39:49,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:49,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716820967] [2020-10-29 07:39:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:50,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:50,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:50,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1045 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5109 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:39:55,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:55,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:39:55,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:55,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:39:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 07:39:55,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-29 07:39:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:39:55,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 07:39:55,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:39:55,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-29 07:39:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-29 07:39:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-29 07:39:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:55,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 852 [2020-10-29 07:39:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:55,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:55,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 826 proven. 437 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2020-10-29 07:39:56,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716820967] [2020-10-29 07:39:56,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:56,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:56,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326028288] [2020-10-29 07:39:56,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:56,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:56,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:56,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:56,533 INFO L87 Difference]: Start difference. First operand 6859 states and 7976 transitions. Second operand 7 states. [2020-10-29 07:39:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:58,219 INFO L93 Difference]: Finished difference Result 14262 states and 16581 transitions. [2020-10-29 07:39:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:39:58,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1019 [2020-10-29 07:39:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:58,257 INFO L225 Difference]: With dead ends: 14262 [2020-10-29 07:39:58,258 INFO L226 Difference]: Without dead ends: 7593 [2020-10-29 07:39:58,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:39:58,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2020-10-29 07:39:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 7225. [2020-10-29 07:39:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7225 states. [2020-10-29 07:39:58,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 8376 transitions. [2020-10-29 07:39:58,443 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 8376 transitions. Word has length 1019 [2020-10-29 07:39:58,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:58,443 INFO L481 AbstractCegarLoop]: Abstraction has 7225 states and 8376 transitions. [2020-10-29 07:39:58,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:58,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 8376 transitions. [2020-10-29 07:39:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2020-10-29 07:39:58,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:58,462 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 4, 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] [2020-10-29 07:39:58,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 07:39:58,463 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:58,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:58,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1002652008, now seen corresponding path program 1 times [2020-10-29 07:39:58,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:58,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486080638] [2020-10-29 07:39:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:58,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:59,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:01,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:01,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:03,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1052 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:40:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:03,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:40:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:03,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:03,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:03,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:40:03,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:03,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:40:03,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:03,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:03,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:03,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:40:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:03,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:03,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:40:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:03,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:03,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:40:03,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:03,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:40:03,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:03,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:03,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:40:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:03,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:03,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:40:03,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:03,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:40:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:03,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:40:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:04,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:40:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:04,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:04,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:04,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-29 07:40:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:04,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:04,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:04,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:40:04,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:40:04,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:04,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:40:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:04,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:04,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-29 07:40:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:04,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:04,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:40:04,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:40:04,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:04,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:40:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:04,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 07:40:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:04,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:04,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:04,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3207 backedges. 833 proven. 437 refuted. 0 times theorem prover too weak. 1937 trivial. 0 not checked. [2020-10-29 07:40:05,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486080638] [2020-10-29 07:40:05,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:40:05,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:40:05,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748107368] [2020-10-29 07:40:05,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:40:05,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:40:05,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:40:05,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:40:05,068 INFO L87 Difference]: Start difference. First operand 7225 states and 8376 transitions. Second operand 7 states. [2020-10-29 07:40:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:40:06,967 INFO L93 Difference]: Finished difference Result 14268 states and 16565 transitions. [2020-10-29 07:40:06,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:40:06,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1026 [2020-10-29 07:40:06,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:40:06,996 INFO L225 Difference]: With dead ends: 14268 [2020-10-29 07:40:06,996 INFO L226 Difference]: Without dead ends: 7233 [2020-10-29 07:40:07,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:40:07,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7233 states. [2020-10-29 07:40:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7233 to 6863. [2020-10-29 07:40:07,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6863 states. [2020-10-29 07:40:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6863 states to 6863 states and 7696 transitions. [2020-10-29 07:40:07,159 INFO L78 Accepts]: Start accepts. Automaton has 6863 states and 7696 transitions. Word has length 1026 [2020-10-29 07:40:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:40:07,160 INFO L481 AbstractCegarLoop]: Abstraction has 6863 states and 7696 transitions. [2020-10-29 07:40:07,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:40:07,160 INFO L276 IsEmpty]: Start isEmpty. Operand 6863 states and 7696 transitions. [2020-10-29 07:40:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2020-10-29 07:40:07,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:40:07,184 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:40:07,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 07:40:07,184 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:40:07,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:40:07,185 INFO L82 PathProgramCache]: Analyzing trace with hash 725073476, now seen corresponding path program 1 times [2020-10-29 07:40:07,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:40:07,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853401002] [2020-10-29 07:40:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:40:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:07,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:08,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:09,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:10,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:10,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:12,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:12,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1158 [2020-10-29 07:40:12,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:40:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-29 07:40:12,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:12,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-29 07:40:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 07:40:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:12,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:40:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:12,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:12,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:12,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:12,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:12,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:40:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:12,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:12,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:12,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:40:12,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:40:12,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:12,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:12,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:40:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:12,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:12,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:12,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:40:12,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:40:12,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:12,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:40:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:12,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:12,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:12,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:12,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:12,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:40:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:12,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:12,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:12,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:40:12,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:12,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:40:12,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:12,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:12,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:40:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:12,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:13,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:13,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:40:13,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:13,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 07:40:13,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:13,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:13,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:13,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:13,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:40:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:13,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:13,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:13,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:13,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:13,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:40:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:13,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:13,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:13,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:40:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:13,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:13,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:13,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:40:13,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:40:13,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:13,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:40:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 07:40:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:13,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-29 07:40:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:13,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:13,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 07:40:13,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:13,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 07:40:13,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:13,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:40:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3958 backedges. 1359 proven. 2 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2020-10-29 07:40:14,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853401002] [2020-10-29 07:40:14,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:40:14,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:40:14,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481594534] [2020-10-29 07:40:14,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:40:14,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:40:14,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:40:14,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:40:14,287 INFO L87 Difference]: Start difference. First operand 6863 states and 7696 transitions. Second operand 7 states. [2020-10-29 07:40:16,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:40:16,229 INFO L93 Difference]: Finished difference Result 15032 states and 17029 transitions. [2020-10-29 07:40:16,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:40:16,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1130 [2020-10-29 07:40:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:40:16,270 INFO L225 Difference]: With dead ends: 15032 [2020-10-29 07:40:16,271 INFO L226 Difference]: Without dead ends: 6515 [2020-10-29 07:40:16,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:40:16,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2020-10-29 07:40:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 6475. [2020-10-29 07:40:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6475 states. [2020-10-29 07:40:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6475 states to 6475 states and 7133 transitions. [2020-10-29 07:40:16,423 INFO L78 Accepts]: Start accepts. Automaton has 6475 states and 7133 transitions. Word has length 1130 [2020-10-29 07:40:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:40:16,424 INFO L481 AbstractCegarLoop]: Abstraction has 6475 states and 7133 transitions. [2020-10-29 07:40:16,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:40:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6475 states and 7133 transitions. [2020-10-29 07:40:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2020-10-29 07:40:16,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:40:16,444 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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] [2020-10-29 07:40:16,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 07:40:16,445 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:40:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:40:16,445 INFO L82 PathProgramCache]: Analyzing trace with hash 410364700, now seen corresponding path program 1 times [2020-10-29 07:40:16,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:40:16,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828041132] [2020-10-29 07:40:16,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:40:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:16,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:17,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:21,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:21,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1158 [2020-10-29 07:40:21,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:40:21,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5117 [2020-10-29 07:40:21,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:21,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-29 07:40:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 07:40:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:21,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:40:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:21,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:21,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:21,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:40:21,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:21,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:40:21,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:21,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:21,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:21,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:21,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:40:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:21,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:21,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:21,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:40:21,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:21,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:40:21,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:21,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:21,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:22,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:40:22,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:40:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:22,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:22,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:22,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:40:22,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:22,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:40:22,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:22,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:22,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:22,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:40:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:22,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:22,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:22,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:40:22,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:22,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:40:22,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:22,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:22,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:22,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:40:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:22,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:22,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:22,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:22,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:22,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:22,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:40:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:22,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:22,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:22,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:40:22,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:40:22,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:22,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:22,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:22,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:40:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:22,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:22,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:22,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:40:22,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:40:22,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:22,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:22,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:40:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:22,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:22,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:22,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:40:22,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:22,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 07:40:22,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:22,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:40:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:22,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-29 07:40:22,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:40:22,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:40:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:22,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:23,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:23,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:40:23,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 07:40:23,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:23,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:40:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:23,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 07:40:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:23,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:23,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:23,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 07:40:23,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:23,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:40:23,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:23,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-29 07:40:23,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:23,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:24,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4041 backedges. 1253 proven. 104 refuted. 0 times theorem prover too weak. 2684 trivial. 0 not checked. [2020-10-29 07:40:24,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828041132] [2020-10-29 07:40:24,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:40:24,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:40:24,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295444006] [2020-10-29 07:40:24,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:40:24,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:40:24,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:40:24,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:40:24,361 INFO L87 Difference]: Start difference. First operand 6475 states and 7133 transitions. Second operand 7 states. [2020-10-29 07:40:26,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:40:26,112 INFO L93 Difference]: Finished difference Result 12758 states and 14074 transitions. [2020-10-29 07:40:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 07:40:26,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1130 [2020-10-29 07:40:26,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:40:26,138 INFO L225 Difference]: With dead ends: 12758 [2020-10-29 07:40:26,138 INFO L226 Difference]: Without dead ends: 6473 [2020-10-29 07:40:26,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:40:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6473 states. [2020-10-29 07:40:26,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6473 to 6473. [2020-10-29 07:40:26,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6473 states. [2020-10-29 07:40:26,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 7018 transitions. [2020-10-29 07:40:26,266 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 7018 transitions. Word has length 1130 [2020-10-29 07:40:26,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:40:26,267 INFO L481 AbstractCegarLoop]: Abstraction has 6473 states and 7018 transitions. [2020-10-29 07:40:26,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:40:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 7018 transitions. [2020-10-29 07:40:26,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1249 [2020-10-29 07:40:26,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:40:26,288 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 7, 7, 7, 7, 6, 5, 5, 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] [2020-10-29 07:40:26,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 07:40:26,288 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:40:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:40:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash -747730540, now seen corresponding path program 1 times [2020-10-29 07:40:26,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:40:26,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421738529] [2020-10-29 07:40:26,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:40:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:26,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:27,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:31,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:31,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1278 [2020-10-29 07:40:31,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:40:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-29 07:40:31,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:31,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:40:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:40:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 416 [2020-10-29 07:40:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:31,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:40:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:31,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:31,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:31,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:40:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:31,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:31,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:31,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:31,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:31,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:40:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:31,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:31,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:31,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:40:31,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:40:31,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:31,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:31,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:40:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:31,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:31,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:31,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:40:31,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:31,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:40:31,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:31,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:31,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:31,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:40:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:31,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:31,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:31,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:40:31,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:40:31,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:31,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:31,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:40:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:31,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:32,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:32,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:40:32,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 07:40:32,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:32,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:32,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:40:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:32,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:32,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:40:32,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:32,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:40:32,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:32,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:40:32,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:32,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:40:32,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:32,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:40:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:32,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:32,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:40:32,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:32,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:40:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:32,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:40:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:32,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:40:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:32,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:32,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:40:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:32,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-29 07:40:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:32,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:32,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:32,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:32,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5043 backedges. 2583 proven. 524 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2020-10-29 07:40:34,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421738529] [2020-10-29 07:40:34,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:40:34,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:40:34,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661269434] [2020-10-29 07:40:34,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:40:34,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:40:34,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:40:34,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:40:34,308 INFO L87 Difference]: Start difference. First operand 6473 states and 7018 transitions. Second operand 11 states. [2020-10-29 07:40:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:40:37,717 INFO L93 Difference]: Finished difference Result 12949 states and 14051 transitions. [2020-10-29 07:40:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 07:40:37,724 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1248 [2020-10-29 07:40:37,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:40:37,741 INFO L225 Difference]: With dead ends: 12949 [2020-10-29 07:40:37,742 INFO L226 Difference]: Without dead ends: 6666 [2020-10-29 07:40:37,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-10-29 07:40:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2020-10-29 07:40:37,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 6655. [2020-10-29 07:40:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6655 states. [2020-10-29 07:40:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6655 states to 6655 states and 7204 transitions. [2020-10-29 07:40:37,873 INFO L78 Accepts]: Start accepts. Automaton has 6655 states and 7204 transitions. Word has length 1248 [2020-10-29 07:40:37,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:40:37,874 INFO L481 AbstractCegarLoop]: Abstraction has 6655 states and 7204 transitions. [2020-10-29 07:40:37,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:40:37,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6655 states and 7204 transitions. [2020-10-29 07:40:37,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1507 [2020-10-29 07:40:37,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:40:37,904 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:40:37,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 07:40:37,904 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:40:37,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:40:37,905 INFO L82 PathProgramCache]: Analyzing trace with hash -838183504, now seen corresponding path program 1 times [2020-10-29 07:40:37,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:40:37,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959805959] [2020-10-29 07:40:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:40:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:38,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:38,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:39,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:40,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1540 [2020-10-29 07:40:43,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:40:43,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:40:43,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:40:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-29 07:40:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-29 07:40:43,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:40:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:40:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:40:43,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:40:43,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:40:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:40:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:40:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:40:43,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:40:43,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:40:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:40:43,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:40:43,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:40:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:40:43,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:40:43,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:40:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:40:43,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:40:43,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:40:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:43,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:40:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:43,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:40:43,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:43,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:40:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:43,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:44,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:44,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:44,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:40:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:44,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-29 07:40:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:44,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:44,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:44,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:40:44,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:44,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 07:40:44,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:44,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:40:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:44,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-29 07:40:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:44,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:44,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:44,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 07:40:44,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:44,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:40:44,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:44,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-29 07:40:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:44,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 7445 backedges. 1820 proven. 108 refuted. 0 times theorem prover too weak. 5517 trivial. 0 not checked. [2020-10-29 07:40:45,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959805959] [2020-10-29 07:40:45,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:40:45,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:40:45,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245812914] [2020-10-29 07:40:45,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:40:45,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:40:45,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:40:45,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:40:45,772 INFO L87 Difference]: Start difference. First operand 6655 states and 7204 transitions. Second operand 8 states. [2020-10-29 07:40:48,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:40:48,291 INFO L93 Difference]: Finished difference Result 13132 states and 14236 transitions. [2020-10-29 07:40:48,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:40:48,292 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1506 [2020-10-29 07:40:48,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:40:48,310 INFO L225 Difference]: With dead ends: 13132 [2020-10-29 07:40:48,310 INFO L226 Difference]: Without dead ends: 6667 [2020-10-29 07:40:48,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:40:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2020-10-29 07:40:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 6473. [2020-10-29 07:40:48,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6473 states. [2020-10-29 07:40:48,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 6996 transitions. [2020-10-29 07:40:48,434 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 6996 transitions. Word has length 1506 [2020-10-29 07:40:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:40:48,436 INFO L481 AbstractCegarLoop]: Abstraction has 6473 states and 6996 transitions. [2020-10-29 07:40:48,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:40:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 6996 transitions. [2020-10-29 07:40:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1570 [2020-10-29 07:40:48,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:40:48,463 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:40:48,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 07:40:48,463 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:40:48,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:40:48,464 INFO L82 PathProgramCache]: Analyzing trace with hash -331099300, now seen corresponding path program 1 times [2020-10-29 07:40:48,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:40:48,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625449079] [2020-10-29 07:40:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:40:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:48,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:51,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:53,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1603 [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5217 [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-29 07:40:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 07:40:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:40:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:40:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:40:54,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:40:54,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:40:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:40:54,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:40:54,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:40:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:40:54,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:40:54,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:40:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:40:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:40:54,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 07:40:54,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:40:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:40:54,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:40:54,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:40:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:40:54,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:40:54,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:40:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:40:54,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:40:54,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:40:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:40:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:40:54,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:40:54,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:40:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:40:54,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:40:54,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:40:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:40:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:40:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:54,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:54,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:40:54,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:54,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 07:40:54,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:54,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:40:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:40:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:40:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:54,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-29 07:40:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:40:55,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:40:55,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 07:40:55,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:40:55,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 07:40:55,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:40:55,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:40:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:40:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:40:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:40:55,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:40:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 7581 backedges. 1791 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-29 07:40:56,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625449079] [2020-10-29 07:40:56,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:40:56,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:40:56,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413680235] [2020-10-29 07:40:56,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:40:56,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:40:56,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:40:56,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:40:56,395 INFO L87 Difference]: Start difference. First operand 6473 states and 6996 transitions. Second operand 7 states. [2020-10-29 07:40:58,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:40:58,252 INFO L93 Difference]: Finished difference Result 12414 states and 13431 transitions. [2020-10-29 07:40:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:40:58,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1569 [2020-10-29 07:40:58,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:40:58,265 INFO L225 Difference]: With dead ends: 12414 [2020-10-29 07:40:58,266 INFO L226 Difference]: Without dead ends: 4289 [2020-10-29 07:40:58,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:40:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2020-10-29 07:40:58,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4071. [2020-10-29 07:40:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4071 states. [2020-10-29 07:40:58,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 4221 transitions. [2020-10-29 07:40:58,351 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 4221 transitions. Word has length 1569 [2020-10-29 07:40:58,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:40:58,352 INFO L481 AbstractCegarLoop]: Abstraction has 4071 states and 4221 transitions. [2020-10-29 07:40:58,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:40:58,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 4221 transitions. [2020-10-29 07:40:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2020-10-29 07:40:58,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:40:58,385 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:40:58,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 07:40:58,385 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:40:58,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:40:58,386 INFO L82 PathProgramCache]: Analyzing trace with hash 899310532, now seen corresponding path program 1 times [2020-10-29 07:40:58,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:40:58,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271476846] [2020-10-29 07:40:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:40:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:40:58,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:01,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:01,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1748 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3068 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 07:41:01,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:41:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:41:02,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:41:02,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:41:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:41:02,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:41:02,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:41:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:41:02,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:41:02,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:41:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:41:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:41:02,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:41:02,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:41:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:41:02,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:41:02,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:41:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:41:02,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:41:02,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:41:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:41:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:41:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:41:02,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:41:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:41:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:41:02,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:41:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:41:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:41:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 07:41:02,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:41:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:41:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 07:41:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-29 07:41:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:02,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:02,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 07:41:02,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 2001 proven. 67 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2020-10-29 07:41:04,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271476846] [2020-10-29 07:41:04,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:41:04,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:41:04,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299410917] [2020-10-29 07:41:04,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:41:04,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:41:04,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:41:04,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:41:04,450 INFO L87 Difference]: Start difference. First operand 4071 states and 4221 transitions. Second operand 8 states. [2020-10-29 07:41:06,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:41:06,879 INFO L93 Difference]: Finished difference Result 4446 states and 4599 transitions. [2020-10-29 07:41:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:41:06,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1712 [2020-10-29 07:41:06,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:41:06,887 INFO L225 Difference]: With dead ends: 4446 [2020-10-29 07:41:06,888 INFO L226 Difference]: Without dead ends: 4259 [2020-10-29 07:41:06,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:41:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4259 states. [2020-10-29 07:41:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4259 to 4071. [2020-10-29 07:41:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4071 states. [2020-10-29 07:41:06,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 4219 transitions. [2020-10-29 07:41:06,953 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 4219 transitions. Word has length 1712 [2020-10-29 07:41:06,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:41:06,955 INFO L481 AbstractCegarLoop]: Abstraction has 4071 states and 4219 transitions. [2020-10-29 07:41:06,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:41:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 4219 transitions. [2020-10-29 07:41:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1728 [2020-10-29 07:41:06,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:41:06,988 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:41:06,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 07:41:06,988 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:41:06,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:41:06,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1252856860, now seen corresponding path program 1 times [2020-10-29 07:41:06,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:41:06,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054371072] [2020-10-29 07:41:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:41:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:08,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:09,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:09,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1763 [2020-10-29 07:41:09,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:41:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2306 [2020-10-29 07:41:09,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:09,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:41:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1697 [2020-10-29 07:41:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 07:41:09,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:09,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:41:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:09,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:09,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:09,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:41:09,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:09,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:41:09,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:09,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:09,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:41:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:09,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:41:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:09,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:09,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:09,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:09,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:41:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:09,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:09,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:09,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:41:09,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:41:09,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:09,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:09,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:41:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:09,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:41:10,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:41:10,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:41:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:41:10,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:41:10,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:41:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:41:10,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:41:10,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:41:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:41:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:41:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:41:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:41:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:41:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 07:41:10,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:41:10,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-29 07:41:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:10,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:10,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 07:41:10,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 9166 backedges. 751 proven. 13 refuted. 0 times theorem prover too weak. 8402 trivial. 0 not checked. [2020-10-29 07:41:11,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054371072] [2020-10-29 07:41:11,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:41:11,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:41:11,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890479631] [2020-10-29 07:41:11,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:41:11,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:41:11,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:41:11,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:41:11,990 INFO L87 Difference]: Start difference. First operand 4071 states and 4219 transitions. Second operand 5 states. [2020-10-29 07:41:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:41:13,335 INFO L93 Difference]: Finished difference Result 8134 states and 8430 transitions. [2020-10-29 07:41:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:41:13,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1727 [2020-10-29 07:41:13,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:41:13,344 INFO L225 Difference]: With dead ends: 8134 [2020-10-29 07:41:13,344 INFO L226 Difference]: Without dead ends: 4067 [2020-10-29 07:41:13,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:41:13,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2020-10-29 07:41:13,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 4067. [2020-10-29 07:41:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4067 states. [2020-10-29 07:41:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 4199 transitions. [2020-10-29 07:41:13,413 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 4199 transitions. Word has length 1727 [2020-10-29 07:41:13,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:41:13,414 INFO L481 AbstractCegarLoop]: Abstraction has 4067 states and 4199 transitions. [2020-10-29 07:41:13,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:41:13,414 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 4199 transitions. [2020-10-29 07:41:13,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1825 [2020-10-29 07:41:13,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:41:13,451 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:41:13,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 07:41:13,451 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:41:13,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:41:13,452 INFO L82 PathProgramCache]: Analyzing trace with hash 122854704, now seen corresponding path program 1 times [2020-10-29 07:41:13,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:41:13,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680140466] [2020-10-29 07:41:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:41:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:13,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:14,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:18,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1862 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4981 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 07:41:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:18,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:41:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:18,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:18,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:18,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:41:18,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:41:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:18,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:18,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:41:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:41:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:41:19,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:41:19,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:41:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:41:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:41:19,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 07:41:19,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:41:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:41:19,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:41:19,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:41:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:41:19,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-29 07:41:19,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:41:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:41:19,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 07:41:19,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:41:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:41:19,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:41:19,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:41:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:41:19,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:41:19,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:41:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:41:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:41:19,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:41:19,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:19,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:41:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:19,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:19,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 07:41:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:19,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-29 07:41:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:19,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:20,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:20,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:41:20,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:20,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 07:41:20,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:20,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:20,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:41:20,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:41:20,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:41:20,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:20,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1649 [2020-10-29 07:41:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:20,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:20,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10538 backedges. 2123 proven. 111 refuted. 0 times theorem prover too weak. 8304 trivial. 0 not checked. [2020-10-29 07:41:21,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680140466] [2020-10-29 07:41:21,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:41:21,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:41:21,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697147094] [2020-10-29 07:41:21,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:41:21,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:41:21,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:41:21,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:41:21,787 INFO L87 Difference]: Start difference. First operand 4067 states and 4199 transitions. Second operand 7 states. [2020-10-29 07:41:23,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:41:23,509 INFO L93 Difference]: Finished difference Result 7946 states and 8208 transitions. [2020-10-29 07:41:23,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:41:23,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1824 [2020-10-29 07:41:23,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:41:23,517 INFO L225 Difference]: With dead ends: 7946 [2020-10-29 07:41:23,517 INFO L226 Difference]: Without dead ends: 4069 [2020-10-29 07:41:23,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:41:23,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2020-10-29 07:41:23,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4067. [2020-10-29 07:41:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4067 states. [2020-10-29 07:41:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 4188 transitions. [2020-10-29 07:41:23,563 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 4188 transitions. Word has length 1824 [2020-10-29 07:41:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:41:23,564 INFO L481 AbstractCegarLoop]: Abstraction has 4067 states and 4188 transitions. [2020-10-29 07:41:23,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:41:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 4188 transitions. [2020-10-29 07:41:23,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1880 [2020-10-29 07:41:23,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:41:23,587 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 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, 1] [2020-10-29 07:41:23,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 07:41:23,587 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:41:23,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:41:23,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1641887784, now seen corresponding path program 1 times [2020-10-29 07:41:23,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:41:23,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300824137] [2020-10-29 07:41:23,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:41:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:24,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:24,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:25,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:28,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:28,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1917 [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-29 07:41:28,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:41:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:41:29,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:41:29,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:41:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:41:29,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:41:29,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:41:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:41:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:41:29,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:41:29,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:41:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:41:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:41:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:41:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:41:29,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:41:29,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:41:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:41:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:41:29,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:41:29,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:41:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:41:29,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:41:29,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:29,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:41:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:29,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:29,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:41:29,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:29,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:41:29,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:29,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:41:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 07:41:29,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:29,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:41:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:29,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:41:30,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 07:41:30,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:30,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1592 [2020-10-29 07:41:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:30,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 07:41:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:30,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:30,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1704 [2020-10-29 07:41:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:30,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:30,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10708 backedges. 2291 proven. 227 refuted. 0 times theorem prover too weak. 8190 trivial. 0 not checked. [2020-10-29 07:41:31,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300824137] [2020-10-29 07:41:31,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:41:31,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:41:31,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062676052] [2020-10-29 07:41:31,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:41:31,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:41:31,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:41:31,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:41:31,943 INFO L87 Difference]: Start difference. First operand 4067 states and 4188 transitions. Second operand 7 states. [2020-10-29 07:41:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:41:34,435 INFO L93 Difference]: Finished difference Result 8308 states and 8563 transitions. [2020-10-29 07:41:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:41:34,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1879 [2020-10-29 07:41:34,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:41:34,446 INFO L225 Difference]: With dead ends: 8308 [2020-10-29 07:41:34,446 INFO L226 Difference]: Without dead ends: 4431 [2020-10-29 07:41:34,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:41:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2020-10-29 07:41:34,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 4247. [2020-10-29 07:41:34,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4247 states. [2020-10-29 07:41:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 4336 transitions. [2020-10-29 07:41:34,520 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 4336 transitions. Word has length 1879 [2020-10-29 07:41:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:41:34,522 INFO L481 AbstractCegarLoop]: Abstraction has 4247 states and 4336 transitions. [2020-10-29 07:41:34,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:41:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 4336 transitions. [2020-10-29 07:41:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1917 [2020-10-29 07:41:34,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:41:34,559 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:41:34,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 07:41:34,559 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:41:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:41:34,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1287409512, now seen corresponding path program 1 times [2020-10-29 07:41:34,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:41:34,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001297782] [2020-10-29 07:41:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:41:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:35,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:36,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:38,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:39,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1956 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1688 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 264 [2020-10-29 07:41:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:41:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:41:40,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:41:40,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:41:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:41:40,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:41:40,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:41:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:41:40,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:41:40,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:41:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:41:40,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:41:40,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:41:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:41:40,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:41:40,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:41:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:41:40,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 07:41:40,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:41:40,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:41:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:41:40,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:41:40,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:41:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:41:40,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 07:41:40,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:41:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:41:40,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:41:40,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:41:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:41:40,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:41:40,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:40,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:41:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:40,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:40,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:40,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:41,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:41:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:41,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:41,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:41:41,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:41,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:41:41,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:41,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:41,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:41,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:41:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:41,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:41,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 07:41:41,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:41:41,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:41,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:41,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:41:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:41:41,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-29 07:41:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:41,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:41,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:41,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 07:41:41,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:41,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 07:41:41,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:41,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:41,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:41:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:41:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 07:41:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:41,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-29 07:41:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:41,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:41,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:41,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 07:41:41,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 07:41:41,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:41,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:41:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:41:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 07:41:41,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:41:41,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1741 [2020-10-29 07:41:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:41:41,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:41:41,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:41:41,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 07:41:41,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:41:41,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 07:41:41,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:41:41,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:41:41,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:41:41,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:41:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 07:41:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0