/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=SHALLOWEST --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/Problem01_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:35:01,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:35:01,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:35:01,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:35:01,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:35:01,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:35:01,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:35:01,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:35:01,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:35:01,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:35:01,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:35:01,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:35:01,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:35:01,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:35:01,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:35:01,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:35:01,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:35:01,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:35:01,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:35:01,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:35:01,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:35:01,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:35:01,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:35:01,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:35:01,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:35:01,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:35:01,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:35:01,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:35:01,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:35:01,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:35:01,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:35:01,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:35:01,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:35:01,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:35:01,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:35:01,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:35:01,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:35:01,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:35:01,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:35:01,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:35:01,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:35:01,504 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 [2020-10-26 20:35:01,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:35:01,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:35:01,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:35:01,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:35:01,561 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:35:01,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:35:01,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:35:01,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:35:01,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:35:01,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:35:01,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:35:01,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:35:01,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:35:01,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:35:01,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:35:01,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:35:01,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:35:01,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:35:01,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:35:01,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:35:01,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:35:01,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:01,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:35:01,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:35:01,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:35:01,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:35:01,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:35:01,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:35:01,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:35:01,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:35:01,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:35:02,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:35:02,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:35:02,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:35:02,011 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:35:02,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label40.c [2020-10-26 20:35:02,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6a85b179/84cede7f49f74f9887a63d33a0a0c6f7/FLAGd99acef85 [2020-10-26 20:35:02,934 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:35:02,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label40.c [2020-10-26 20:35:02,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6a85b179/84cede7f49f74f9887a63d33a0a0c6f7/FLAGd99acef85 [2020-10-26 20:35:03,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6a85b179/84cede7f49f74f9887a63d33a0a0c6f7 [2020-10-26 20:35:03,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:35:03,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:35:03,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:03,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:35:03,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:35:03,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:03,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b3ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03, skipping insertion in model container [2020-10-26 20:35:03,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:03,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:35:03,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:35:03,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:03,748 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:35:03,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:03,902 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:35:03,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03 WrapperNode [2020-10-26 20:35:03,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:03,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:35:03,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:35:03,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:35:03,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:03,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:03,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:03,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:03,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:04,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:04,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (1/1) ... [2020-10-26 20:35:04,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:35:04,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:35:04,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:35:04,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:35:04,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (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 [2020-10-26 20:35:04,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:35:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:35:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:35:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:35:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:35:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:35:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:35:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:35:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:35:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:35:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:35:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:35:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:35:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:35:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:35:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:35:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:35:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:35:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:35:05,365 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:35:05,365 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:35:05,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:05 BoogieIcfgContainer [2020-10-26 20:35:05,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:35:05,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:35:05,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:35:05,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:35:05,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:35:03" (1/3) ... [2020-10-26 20:35:05,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4a90ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:05, skipping insertion in model container [2020-10-26 20:35:05,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:03" (2/3) ... [2020-10-26 20:35:05,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4a90ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:05, skipping insertion in model container [2020-10-26 20:35:05,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:05" (3/3) ... [2020-10-26 20:35:05,377 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label40.c [2020-10-26 20:35:05,389 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:35:05,394 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:35:05,413 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:35:05,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:35:05,439 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:35:05,439 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:35:05,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:35:05,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:35:05,440 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:35:05,440 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:35:05,440 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:35:05,464 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:35:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-26 20:35:05,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:05,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:05,476 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:05,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:05,483 INFO L82 PathProgramCache]: Analyzing trace with hash 341794889, now seen corresponding path program 1 times [2020-10-26 20:35:05,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:05,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283361952] [2020-10-26 20:35:05,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:05,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-26 20:35:07,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:07,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-10-26 20:35:07,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:35:07,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:07,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:35:07,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:35:08,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:08,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:35:08,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:08,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:35:08,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283361952] [2020-10-26 20:35:08,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:35:08,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:35:08,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682625271] [2020-10-26 20:35:08,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:35:08,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:08,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:35:08,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:08,522 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:35:08,760 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:35:08,956 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:35:09,131 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:35:09,341 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-26 20:35:09,864 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-26 20:35:10,338 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-26 20:35:10,986 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-26 20:35:11,700 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2020-10-26 20:35:12,224 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-26 20:35:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:13,679 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:35:13,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:35:13,682 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-10-26 20:35:13,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:13,695 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:35:13,695 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:35:13,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:35:13,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:35:13,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:35:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:35:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:35:13,769 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 94 [2020-10-26 20:35:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:13,770 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:35:13,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:35:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:35:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-26 20:35:13,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:13,776 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:13,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:35:13,776 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:13,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:13,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1496412903, now seen corresponding path program 1 times [2020-10-26 20:35:13,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:13,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048036130] [2020-10-26 20:35:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:13,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:15,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:15,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 20:35:15,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:15,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2039 [2020-10-26 20:35:15,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-26 20:35:15,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:35:16,115 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:35:16,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:16,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:16,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:16,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:16,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:16,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:35:16,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:16,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:16,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:16,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:16,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:16,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:16,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:35:16,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:16,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:35:16,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048036130] [2020-10-26 20:35:16,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:16,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:16,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734422131] [2020-10-26 20:35:16,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:35:16,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:16,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:35:16,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:16,273 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:35:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:17,748 INFO L93 Difference]: Finished difference Result 489 states and 703 transitions. [2020-10-26 20:35:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:35:17,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-10-26 20:35:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:17,756 INFO L225 Difference]: With dead ends: 489 [2020-10-26 20:35:17,756 INFO L226 Difference]: Without dead ends: 349 [2020-10-26 20:35:17,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:17,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-10-26 20:35:17,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 343. [2020-10-26 20:35:17,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-26 20:35:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2020-10-26 20:35:17,824 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 102 [2020-10-26 20:35:17,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:17,826 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2020-10-26 20:35:17,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:35:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2020-10-26 20:35:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-26 20:35:17,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:17,830 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:17,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:35:17,834 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:17,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1524125818, now seen corresponding path program 1 times [2020-10-26 20:35:17,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:17,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565708973] [2020-10-26 20:35:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:17,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 20:35:18,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:18,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-26 20:35:18,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 20:35:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:35:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:18,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:18,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:35:18,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:18,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:18,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:18,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:18,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:18,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:18,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:35:18,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:18,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:35:18,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565708973] [2020-10-26 20:35:18,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:18,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:18,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455179393] [2020-10-26 20:35:18,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:35:18,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:18,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:35:18,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:18,889 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 6 states. [2020-10-26 20:35:20,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:20,319 INFO L93 Difference]: Finished difference Result 902 states and 1282 transitions. [2020-10-26 20:35:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:35:20,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2020-10-26 20:35:20,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:20,329 INFO L225 Difference]: With dead ends: 902 [2020-10-26 20:35:20,329 INFO L226 Difference]: Without dead ends: 625 [2020-10-26 20:35:20,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-10-26 20:35:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 623. [2020-10-26 20:35:20,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-10-26 20:35:20,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 842 transitions. [2020-10-26 20:35:20,392 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 842 transitions. Word has length 105 [2020-10-26 20:35:20,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:20,393 INFO L481 AbstractCegarLoop]: Abstraction has 623 states and 842 transitions. [2020-10-26 20:35:20,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:35:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 842 transitions. [2020-10-26 20:35:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-26 20:35:20,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:20,398 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:20,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:35:20,398 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:20,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:20,399 INFO L82 PathProgramCache]: Analyzing trace with hash 375375484, now seen corresponding path program 1 times [2020-10-26 20:35:20,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:20,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611192867] [2020-10-26 20:35:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:20,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:20,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:20,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:21,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:22,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:22,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-26 20:35:22,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:22,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2120 [2020-10-26 20:35:22,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:35:22,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:22,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:22,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:22,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:22,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:22,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:22,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:35:22,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:22,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:22,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:22,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:22,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:22,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:22,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:22,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:35:22,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:22,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:22,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:22,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:22,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:22,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:22,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:22,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 20:35:22,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:22,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:22,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:35:22,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611192867] [2020-10-26 20:35:22,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:22,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:22,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377298014] [2020-10-26 20:35:22,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:22,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:22,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:22,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:22,951 INFO L87 Difference]: Start difference. First operand 623 states and 842 transitions. Second operand 8 states. [2020-10-26 20:35:24,467 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:24,894 INFO L93 Difference]: Finished difference Result 1476 states and 2019 transitions. [2020-10-26 20:35:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:35:24,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-10-26 20:35:24,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:24,904 INFO L225 Difference]: With dead ends: 1476 [2020-10-26 20:35:24,905 INFO L226 Difference]: Without dead ends: 919 [2020-10-26 20:35:24,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:35:24,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-26 20:35:24,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 770. [2020-10-26 20:35:24,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2020-10-26 20:35:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1021 transitions. [2020-10-26 20:35:24,944 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1021 transitions. Word has length 119 [2020-10-26 20:35:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:24,944 INFO L481 AbstractCegarLoop]: Abstraction has 770 states and 1021 transitions. [2020-10-26 20:35:24,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1021 transitions. [2020-10-26 20:35:24,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-26 20:35:24,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:24,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:24,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:35:24,948 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:24,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:24,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1127973955, now seen corresponding path program 1 times [2020-10-26 20:35:24,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:24,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405705756] [2020-10-26 20:35:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:26,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:26,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-26 20:35:26,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:26,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1756 [2020-10-26 20:35:26,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:26,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:26,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:26,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:35:26,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:26,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:26,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:26,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:26,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:35:26,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:26,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:26,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:26,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:26,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:26,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:35:26,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:26,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:35:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:26,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:26,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:26,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:26,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:35:26,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:35:27,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405705756] [2020-10-26 20:35:27,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:27,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:35:27,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143891379] [2020-10-26 20:35:27,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:27,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:27,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:27,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:27,056 INFO L87 Difference]: Start difference. First operand 770 states and 1021 transitions. Second operand 7 states. [2020-10-26 20:35:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:28,862 INFO L93 Difference]: Finished difference Result 1633 states and 2219 transitions. [2020-10-26 20:35:28,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:28,863 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-26 20:35:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:28,869 INFO L225 Difference]: With dead ends: 1633 [2020-10-26 20:35:28,869 INFO L226 Difference]: Without dead ends: 929 [2020-10-26 20:35:28,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2020-10-26 20:35:28,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 911. [2020-10-26 20:35:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-10-26 20:35:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1185 transitions. [2020-10-26 20:35:28,916 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1185 transitions. Word has length 122 [2020-10-26 20:35:28,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:28,917 INFO L481 AbstractCegarLoop]: Abstraction has 911 states and 1185 transitions. [2020-10-26 20:35:28,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:28,917 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1185 transitions. [2020-10-26 20:35:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 20:35:28,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:28,920 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:28,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:35:28,921 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:28,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:28,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1395871935, now seen corresponding path program 1 times [2020-10-26 20:35:28,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:28,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725413149] [2020-10-26 20:35:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:28,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:30,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 20:35:30,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2039 [2020-10-26 20:35:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:31,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:31,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:31,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:31,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:31,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:31,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:31,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:31,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:31,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:31,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:31,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:35:31,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:31,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:31,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:35:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:31,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:31,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:31,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:31,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:31,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:35:31,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:31,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:31,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:31,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:35:31,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:31,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:35:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:31,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:31,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:31,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:31,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:35:31,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:35:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:31,309 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:35:31,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725413149] [2020-10-26 20:35:31,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:31,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:31,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93719058] [2020-10-26 20:35:31,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:31,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:31,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:31,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:31,313 INFO L87 Difference]: Start difference. First operand 911 states and 1185 transitions. Second operand 7 states. [2020-10-26 20:35:31,485 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:35:33,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:33,471 INFO L93 Difference]: Finished difference Result 2575 states and 3979 transitions. [2020-10-26 20:35:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:35:33,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-10-26 20:35:33,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:33,492 INFO L225 Difference]: With dead ends: 2575 [2020-10-26 20:35:33,492 INFO L226 Difference]: Without dead ends: 1730 [2020-10-26 20:35:33,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:33,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2020-10-26 20:35:33,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1475. [2020-10-26 20:35:33,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1475 states. [2020-10-26 20:35:33,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1916 transitions. [2020-10-26 20:35:33,603 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1916 transitions. Word has length 132 [2020-10-26 20:35:33,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:33,603 INFO L481 AbstractCegarLoop]: Abstraction has 1475 states and 1916 transitions. [2020-10-26 20:35:33,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:33,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1916 transitions. [2020-10-26 20:35:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-26 20:35:33,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:33,609 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:33,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:35:33,609 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:33,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:33,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1479339294, now seen corresponding path program 1 times [2020-10-26 20:35:33,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:33,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427457851] [2020-10-26 20:35:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:33,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:33,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:34,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:34,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:35,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-26 20:35:37,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:35:37,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4025 [2020-10-26 20:35:37,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:35:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:35:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:37,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:37,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:37,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:37,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:37,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:37,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:37,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:35:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:37,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:35:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:37,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:37,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:37,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:35:37,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:35:37,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:37,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-26 20:35:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:37,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:38,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:38,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:38,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:35:38,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-26 20:35:38,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427457851] [2020-10-26 20:35:38,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:38,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:38,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997410267] [2020-10-26 20:35:38,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:38,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:38,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:38,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:38,088 INFO L87 Difference]: Start difference. First operand 1475 states and 1916 transitions. Second operand 8 states. [2020-10-26 20:35:38,254 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:35:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:40,129 INFO L93 Difference]: Finished difference Result 3740 states and 5055 transitions. [2020-10-26 20:35:40,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:35:40,130 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2020-10-26 20:35:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:40,143 INFO L225 Difference]: With dead ends: 3740 [2020-10-26 20:35:40,143 INFO L226 Difference]: Without dead ends: 2331 [2020-10-26 20:35:40,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:35:40,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2020-10-26 20:35:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2180. [2020-10-26 20:35:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-10-26 20:35:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2783 transitions. [2020-10-26 20:35:40,257 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2783 transitions. Word has length 135 [2020-10-26 20:35:40,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:40,258 INFO L481 AbstractCegarLoop]: Abstraction has 2180 states and 2783 transitions. [2020-10-26 20:35:40,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:40,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2783 transitions. [2020-10-26 20:35:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-26 20:35:40,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:40,265 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:40,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:35:40,266 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:40,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1631038119, now seen corresponding path program 1 times [2020-10-26 20:35:40,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:40,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335483733] [2020-10-26 20:35:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:41,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:42,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-26 20:35:42,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:42,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1893 [2020-10-26 20:35:42,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:35:42,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:42,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:42,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:42,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:42,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:42,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:42,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:42,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:42,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:42,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:42,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:35:42,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:35:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:42,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:42,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:42,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:35:42,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:42,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 20:35:42,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:35:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:42,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:35:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:42,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:42,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:42,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:42,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:35:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 58 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:35:42,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335483733] [2020-10-26 20:35:42,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:42,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:42,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698261814] [2020-10-26 20:35:42,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:42,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:42,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:42,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:42,537 INFO L87 Difference]: Start difference. First operand 2180 states and 2783 transitions. Second operand 7 states. [2020-10-26 20:35:44,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:44,399 INFO L93 Difference]: Finished difference Result 4713 states and 6005 transitions. [2020-10-26 20:35:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:35:44,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-10-26 20:35:44,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:44,414 INFO L225 Difference]: With dead ends: 4713 [2020-10-26 20:35:44,414 INFO L226 Difference]: Without dead ends: 2599 [2020-10-26 20:35:44,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2020-10-26 20:35:44,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2456. [2020-10-26 20:35:44,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2456 states. [2020-10-26 20:35:44,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3032 transitions. [2020-10-26 20:35:44,520 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3032 transitions. Word has length 152 [2020-10-26 20:35:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:44,521 INFO L481 AbstractCegarLoop]: Abstraction has 2456 states and 3032 transitions. [2020-10-26 20:35:44,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3032 transitions. [2020-10-26 20:35:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-26 20:35:44,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:44,528 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:44,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:35:44,528 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:44,529 INFO L82 PathProgramCache]: Analyzing trace with hash 302932358, now seen corresponding path program 1 times [2020-10-26 20:35:44,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:44,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528544897] [2020-10-26 20:35:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:44,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:44,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:49,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-26 20:35:49,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:35:49,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4985 [2020-10-26 20:35:49,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:35:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:49,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:49,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:49,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:49,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:49,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:49,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:49,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:49,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:49,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:49,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:49,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:49,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:35:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:49,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:35:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:49,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:49,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:35:49,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 20:35:49,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:35:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 20:35:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:50,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:50,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:50,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:50,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:35:50,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:35:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:50,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 57 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:35:50,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528544897] [2020-10-26 20:35:50,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:50,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:50,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846426622] [2020-10-26 20:35:50,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:50,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:50,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:50,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:50,106 INFO L87 Difference]: Start difference. First operand 2456 states and 3032 transitions. Second operand 8 states. [2020-10-26 20:35:50,240 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:35:50,912 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:35:51,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:51,996 INFO L93 Difference]: Finished difference Result 4997 states and 6227 transitions. [2020-10-26 20:35:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:52,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-10-26 20:35:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:52,019 INFO L225 Difference]: With dead ends: 4997 [2020-10-26 20:35:52,019 INFO L226 Difference]: Without dead ends: 2607 [2020-10-26 20:35:52,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:35:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2020-10-26 20:35:52,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2599. [2020-10-26 20:35:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2599 states. [2020-10-26 20:35:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3180 transitions. [2020-10-26 20:35:52,113 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3180 transitions. Word has length 155 [2020-10-26 20:35:52,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:52,114 INFO L481 AbstractCegarLoop]: Abstraction has 2599 states and 3180 transitions. [2020-10-26 20:35:52,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3180 transitions. [2020-10-26 20:35:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-26 20:35:52,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:52,122 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-26 20:35:52,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:35:52,123 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:52,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:52,123 INFO L82 PathProgramCache]: Analyzing trace with hash -612556374, now seen corresponding path program 1 times [2020-10-26 20:35:52,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:52,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210795822] [2020-10-26 20:35:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:52,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:52,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-26 20:35:53,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:53,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1126 [2020-10-26 20:35:53,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:35:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:35:53,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:53,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:53,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:53,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:53,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:53,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:35:53,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:35:53,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:53,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:35:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:35:53,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:35:53,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:53,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:53,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:35:53,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:35:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:53,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:35:53,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:53,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-26 20:35:53,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210795822] [2020-10-26 20:35:53,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:53,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:53,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441470821] [2020-10-26 20:35:53,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:53,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:53,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:53,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:53,701 INFO L87 Difference]: Start difference. First operand 2599 states and 3180 transitions. Second operand 8 states. [2020-10-26 20:35:56,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:56,452 INFO L93 Difference]: Finished difference Result 6246 states and 7765 transitions. [2020-10-26 20:35:56,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:35:56,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2020-10-26 20:35:56,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:56,471 INFO L225 Difference]: With dead ends: 6246 [2020-10-26 20:35:56,471 INFO L226 Difference]: Without dead ends: 3574 [2020-10-26 20:35:56,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:35:56,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2020-10-26 20:35:56,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3016. [2020-10-26 20:35:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3016 states. [2020-10-26 20:35:56,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3016 states to 3016 states and 3648 transitions. [2020-10-26 20:35:56,603 INFO L78 Accepts]: Start accepts. Automaton has 3016 states and 3648 transitions. Word has length 185 [2020-10-26 20:35:56,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:56,603 INFO L481 AbstractCegarLoop]: Abstraction has 3016 states and 3648 transitions. [2020-10-26 20:35:56,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3016 states and 3648 transitions. [2020-10-26 20:35:56,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-26 20:35:56,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:56,614 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:35:56,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:35:56,614 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:56,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:56,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1919513370, now seen corresponding path program 1 times [2020-10-26 20:35:56,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:56,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524570497] [2020-10-26 20:35:56,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:56,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:56,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:01,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:01,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-26 20:36:01,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:01,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-26 20:36:01,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:01,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:01,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:36:01,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:36:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:01,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:01,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:01,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:01,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:01,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:01,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:01,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:01,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:01,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:01,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:01,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:36:01,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:01,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:01,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:36:01,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:01,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:02,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-26 20:36:02,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:36:02,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:36:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:02,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:02,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:36:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:36:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:02,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:02,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:36:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:36:02,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:36:02,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:36:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 184 proven. 50 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-26 20:36:02,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524570497] [2020-10-26 20:36:02,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:02,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:02,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781012390] [2020-10-26 20:36:02,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:02,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:02,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:02,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:02,209 INFO L87 Difference]: Start difference. First operand 3016 states and 3648 transitions. Second operand 7 states. [2020-10-26 20:36:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:04,080 INFO L93 Difference]: Finished difference Result 6119 states and 7523 transitions. [2020-10-26 20:36:04,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:04,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-26 20:36:04,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:04,097 INFO L225 Difference]: With dead ends: 6119 [2020-10-26 20:36:04,097 INFO L226 Difference]: Without dead ends: 3169 [2020-10-26 20:36:04,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2020-10-26 20:36:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3161. [2020-10-26 20:36:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3161 states. [2020-10-26 20:36:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3161 states to 3161 states and 3831 transitions. [2020-10-26 20:36:04,224 INFO L78 Accepts]: Start accepts. Automaton has 3161 states and 3831 transitions. Word has length 243 [2020-10-26 20:36:04,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:04,225 INFO L481 AbstractCegarLoop]: Abstraction has 3161 states and 3831 transitions. [2020-10-26 20:36:04,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3161 states and 3831 transitions. [2020-10-26 20:36:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-26 20:36:04,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:04,278 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:36:04,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:36:04,278 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash 691297230, now seen corresponding path program 1 times [2020-10-26 20:36:04,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:04,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270083653] [2020-10-26 20:36:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:04,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:04,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-26 20:36:06,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:06,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1721 [2020-10-26 20:36:06,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:06,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:36:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 20:36:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:06,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:06,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:06,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:06,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:06,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:06,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:06,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:06,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:06,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:06,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:06,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:06,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:06,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:06,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:06,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:06,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:06,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:06,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:06,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:36:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 236 proven. 7 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:36:06,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270083653] [2020-10-26 20:36:06,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:06,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:36:06,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498599082] [2020-10-26 20:36:06,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:36:06,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:06,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:36:06,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:06,589 INFO L87 Difference]: Start difference. First operand 3161 states and 3831 transitions. Second operand 6 states. [2020-10-26 20:36:07,435 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:08,228 INFO L93 Difference]: Finished difference Result 6864 states and 8592 transitions. [2020-10-26 20:36:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:36:08,229 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 265 [2020-10-26 20:36:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:08,251 INFO L225 Difference]: With dead ends: 6864 [2020-10-26 20:36:08,251 INFO L226 Difference]: Without dead ends: 3771 [2020-10-26 20:36:08,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:08,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3771 states. [2020-10-26 20:36:08,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3771 to 3574. [2020-10-26 20:36:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3574 states. [2020-10-26 20:36:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 4320 transitions. [2020-10-26 20:36:08,390 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 4320 transitions. Word has length 265 [2020-10-26 20:36:08,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:08,391 INFO L481 AbstractCegarLoop]: Abstraction has 3574 states and 4320 transitions. [2020-10-26 20:36:08,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:36:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 4320 transitions. [2020-10-26 20:36:08,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-26 20:36:08,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:08,405 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:36:08,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:36:08,405 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:08,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:08,406 INFO L82 PathProgramCache]: Analyzing trace with hash 412848765, now seen corresponding path program 1 times [2020-10-26 20:36:08,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:08,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443755644] [2020-10-26 20:36:08,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:08,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:08,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:08,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-26 20:36:11,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:36:11,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2611 [2020-10-26 20:36:11,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:36:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-26 20:36:11,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:11,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:11,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:11,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:11,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:11,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:36:11,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:11,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:11,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:11,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:11,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:11,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:11,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:11,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:11,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:11,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:36:11,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:11,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:11,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:36:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:36:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:11,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:11,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:36:11,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:11,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 20:36:11,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:36:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 325 proven. 70 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-26 20:36:11,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443755644] [2020-10-26 20:36:11,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:11,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:36:11,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000821295] [2020-10-26 20:36:11,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:36:11,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:11,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:36:11,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:11,780 INFO L87 Difference]: Start difference. First operand 3574 states and 4320 transitions. Second operand 6 states. [2020-10-26 20:36:12,054 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:36:13,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:13,579 INFO L93 Difference]: Finished difference Result 7276 states and 8902 transitions. [2020-10-26 20:36:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:36:13,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 310 [2020-10-26 20:36:13,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:13,581 INFO L225 Difference]: With dead ends: 7276 [2020-10-26 20:36:13,581 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:36:13,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:13,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:36:13,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:36:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:36:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:36:13,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 310 [2020-10-26 20:36:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:13,598 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:36:13,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:36:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:36:13,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:36:13,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:36:13,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:36:14,759 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 181 [2020-10-26 20:36:15,132 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 171 [2020-10-26 20:36:15,443 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 40 [2020-10-26 20:36:16,724 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 222 DAG size of output: 64 [2020-10-26 20:36:17,270 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 52 [2020-10-26 20:36:17,903 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 52 [2020-10-26 20:36:18,168 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 40 [2020-10-26 20:36:18,172 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:36:18,173 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:36:18,173 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:36:18,173 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:36:18,173 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:36:18,173 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:36:18,173 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:36:18,174 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,175 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:36:18,176 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:36:18,177 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L270 CegarLoopResult]: At program point L439(line 439) the Hoare annotation is: (let ((.cse1 (not (= 6 |old(~a16~0)|))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse0 (not (<= 15 |old(~a8~0)|))) (.cse3 (not (= 5 |old(~a16~0)|)))) (and (or (not (<= 1 |old(~a7~0)|)) (not (<= |old(~a7~0)| 1))) (or .cse0 .cse1) (or (not (= |old(~a17~0)| 1)) .cse1 .cse2) (not (<= |old(~a16~0)| 4)) (or (not (= |old(~a20~0)| 1)) .cse3 .cse2) (or .cse3 (not (<= |old(~a20~0)| 0))) (or .cse0 .cse3))) [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L439-1(line 439) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:36:18,178 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:36:18,179 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,180 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:36:18,181 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,182 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,183 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:36:18,184 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:36:18,185 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse12 (= ~a16~0 |old(~a16~0)|)) (.cse5 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a8~0 |old(~a8~0)|)) (.cse10 (= 5 ~a16~0))) (let ((.cse0 (not (<= 15 |old(~a8~0)|))) (.cse1 (and .cse5 .cse6 .cse13 .cse8 .cse9 .cse10)) (.cse2 (not (= 5 |old(~a16~0)|))) (.cse4 (and .cse5 .cse6 .cse13 .cse8 .cse12 .cse9)) (.cse3 (not (= 6 |old(~a16~0)|))) (.cse7 (= ~a21~0 1)) (.cse11 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4) (or (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (not (= |old(~a20~0)| 1)) .cse2 .cse11) (or .cse1 .cse2 (not (<= |old(~a20~0)| 0))) (or (not (<= |old(~a16~0)| 4)) .cse4) (or (not (= |old(~a17~0)| 1)) .cse3 (and .cse5 .cse6 .cse7 .cse8 .cse12 .cse9) .cse11) (or (not (<= 1 |old(~a7~0)|)) (not (<= |old(~a7~0)| 1)) (and (<= 1 ~a7~0) .cse6 .cse13 .cse8 .cse12 .cse9 (<= ~a7~0 1)))))) [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,186 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:36:18,187 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:36:18,188 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,189 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:36:18,190 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:36:18,191 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:36:18,191 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:36:18,191 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:36:18,192 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse1 (= ~a21~0 1)) (.cse0 (= 5 ~a16~0)) (.cse2 (= ~a16~0 6)) (.cse3 (<= 15 ~a8~0))) (or (and .cse0 (<= ~a20~0 0)) (and .cse1 .cse2 (= ~a17~0 1)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= |old(~a17~0)| 1)) (and .cse1 (= ~a20~0 1) .cse0) (and .cse0 .cse3) (and (<= 1 ~a7~0) (<= ~a7~0 1)) (<= ~a16~0 4) (and .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:36:18,192 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:36:18,192 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:36:18,192 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (= ~a21~0 1)) (.cse0 (= 5 ~a16~0)) (.cse2 (= ~a16~0 6)) (.cse3 (<= 15 ~a8~0))) (or (and .cse0 (<= ~a20~0 0)) (and .cse1 .cse2 (= ~a17~0 1)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= |old(~a17~0)| 1)) (and .cse1 (= ~a20~0 1) .cse0) (and .cse0 .cse3) (and (<= 1 ~a7~0) (<= ~a7~0 1)) (<= ~a16~0 4) (and .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:36:18,192 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:36:18,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:36:18 BoogieIcfgContainer [2020-10-26 20:36:18,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:36:18,215 INFO L168 Benchmark]: Toolchain (without parser) took 75104.65 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 867.2 MB). Free memory was 124.2 MB in the beginning and 640.6 MB in the end (delta: -516.4 MB). Peak memory consumption was 607.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:18,215 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:36:18,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.82 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 96.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:18,216 INFO L168 Benchmark]: Boogie Preprocessor took 136.33 ms. Allocated memory is still 151.0 MB. Free memory was 96.6 MB in the beginning and 91.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:18,217 INFO L168 Benchmark]: RCFGBuilder took 1325.22 ms. Allocated memory is still 151.0 MB. Free memory was 91.7 MB in the beginning and 59.7 MB in the end (delta: 32.1 MB). Peak memory consumption was 38.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:18,218 INFO L168 Benchmark]: TraceAbstraction took 72843.61 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 867.2 MB). Free memory was 59.1 MB in the beginning and 640.6 MB in the end (delta: -581.5 MB). Peak memory consumption was 541.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:18,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 783.82 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 96.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 136.33 ms. Allocated memory is still 151.0 MB. Free memory was 96.6 MB in the beginning and 91.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1325.22 ms. Allocated memory is still 151.0 MB. Free memory was 91.7 MB in the beginning and 59.7 MB in the end (delta: 32.1 MB). Peak memory consumption was 38.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 72843.61 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 867.2 MB). Free memory was 59.1 MB in the beginning and 640.6 MB in the end (delta: -581.5 MB). Peak memory consumption was 541.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((5 == a16 && a20 <= 0) || ((a21 == 1 && a16 == 6) && a17 == 1)) || !(\old(a20) == 1)) || !(\old(a21) == 1)) || !(\old(a17) == 1)) || ((a21 == 1 && a20 == 1) && 5 == a16)) || (5 == a16 && 15 <= a8)) || (1 <= a7 && a7 <= 1)) || a16 <= 4) || (a16 == 6 && 15 <= a8)) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 68.1s, OverallIterations: 13, TraceHistogramMax: 7, AutomataDifference: 28.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 352 SDtfs, 4923 SDslu, 504 SDs, 0 SdLazy, 11457 SolverSat, 1601 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 129 SyntacticMatches, 3 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3574occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 1495 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 393 PreInvPairs, 473 NumberOfFragments, 591 HoareAnnotationTreeSize, 393 FomulaSimplifications, 40750 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7013 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 37.1s InterpolantComputationTime, 2119 NumberOfCodeBlocks, 2119 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1666239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 1571/1763 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...