/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_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:33:30,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:33:30,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:33:30,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:33:30,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:33:30,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:33:30,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:33:30,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:33:30,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:33:30,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:33:30,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:33:30,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:33:30,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:33:30,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:33:30,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:33:30,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:33:30,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:33:30,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:33:30,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:33:30,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:33:30,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:33:30,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:33:30,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:33:30,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:33:30,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:33:30,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:33:30,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:33:30,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:33:30,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:33:30,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:33:30,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:33:30,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:33:30,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:33:30,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:33:30,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:33:30,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:33:30,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:33:30,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:33:30,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:33:30,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:33:30,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:33:30,356 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 20:33:30,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:33:30,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:33:30,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:33:30,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:33:30,398 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:33:30,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:33:30,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:33:30,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:33:30,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:33:30,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:33:30,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:33:30,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:33:30,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:33:30,399 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:33:30,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:33:30,400 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:33:30,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:33:30,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:33:30,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:33:30,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:33:30,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:33:30,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:33:30,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:33:30,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:33:30,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:33:30,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:33:30,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:33:30,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:33:30,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:33:30,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:33:30,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:33:30,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:33:30,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:33:30,854 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:33:30,855 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:33:30,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label27.c [2020-10-26 20:33:30,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd8dba1f6/b5f26f0595224e319e836b0244aae4bb/FLAG8f20c12b7 [2020-10-26 20:33:31,661 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:33:31,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label27.c [2020-10-26 20:33:31,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd8dba1f6/b5f26f0595224e319e836b0244aae4bb/FLAG8f20c12b7 [2020-10-26 20:33:31,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd8dba1f6/b5f26f0595224e319e836b0244aae4bb [2020-10-26 20:33:31,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:33:31,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:33:31,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:31,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:33:31,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:33:31,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:31" (1/1) ... [2020-10-26 20:33:31,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec79b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:31, skipping insertion in model container [2020-10-26 20:33:31,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:31" (1/1) ... [2020-10-26 20:33:31,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:33:32,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:33:32,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:32,542 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:33:32,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:32,717 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:33:32,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32 WrapperNode [2020-10-26 20:33:32,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:32,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:33:32,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:33:32,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:33:32,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (1/1) ... [2020-10-26 20:33:32,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (1/1) ... [2020-10-26 20:33:32,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (1/1) ... [2020-10-26 20:33:32,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (1/1) ... [2020-10-26 20:33:32,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (1/1) ... [2020-10-26 20:33:32,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (1/1) ... [2020-10-26 20:33:32,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (1/1) ... [2020-10-26 20:33:32,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:33:32,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:33:32,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:33:32,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:33:32,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (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 20:33:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:33:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:33:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:33:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:33:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:33:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:33:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:33:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:33:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:33:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:33:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:33:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:33:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:33:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:33:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:33:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:33:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:33:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:33:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:33:34,398 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:33:34,399 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:33:34,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:34 BoogieIcfgContainer [2020-10-26 20:33:34,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:33:34,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:33:34,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:33:34,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:33:34,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:33:31" (1/3) ... [2020-10-26 20:33:34,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a78d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:34, skipping insertion in model container [2020-10-26 20:33:34,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:32" (2/3) ... [2020-10-26 20:33:34,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a78d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:34, skipping insertion in model container [2020-10-26 20:33:34,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:34" (3/3) ... [2020-10-26 20:33:34,411 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label27.c [2020-10-26 20:33:34,423 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:33:34,429 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:33:34,443 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:33:34,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:33:34,472 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:33:34,472 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:33:34,472 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:33:34,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:33:34,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:33:34,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:33:34,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:33:34,496 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:33:34,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-26 20:33:34,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:34,508 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, 1] [2020-10-26 20:33:34,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:34,515 INFO L82 PathProgramCache]: Analyzing trace with hash 2005498771, now seen corresponding path program 1 times [2020-10-26 20:33:34,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:34,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972435953] [2020-10-26 20:33:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:34,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:35,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-26 20:33:36,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2142 [2020-10-26 20:33:36,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:33:36,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:33:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:33:37,559 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-26 20:33:37,707 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2020-10-26 20:33:37,959 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2020-10-26 20:33:38,298 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:38,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:38,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:38,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:38,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:38,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:38,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:33:38,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:38,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:38,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:38,529 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 20:33:38,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972435953] [2020-10-26 20:33:38,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:38,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:33:38,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371133088] [2020-10-26 20:33:38,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:33:38,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:38,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:33:38,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:38,569 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:33:38,781 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:33:38,996 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-26 20:33:39,263 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-26 20:33:39,563 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-26 20:33:40,100 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-10-26 20:33:40,682 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2020-10-26 20:33:41,498 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-10-26 20:33:42,404 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2020-10-26 20:33:43,049 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 127 [2020-10-26 20:33:44,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:44,508 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:33:44,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:33:44,512 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2020-10-26 20:33:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:44,525 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:33:44,525 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:33:44,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:33:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:33:44,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:33:44,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:33:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:33:44,611 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 95 [2020-10-26 20:33:44,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:44,612 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:33:44,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:33:44,612 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:33:44,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-26 20:33:44,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:44,618 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, 1] [2020-10-26 20:33:44,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:33:44,618 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:44,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:44,619 INFO L82 PathProgramCache]: Analyzing trace with hash -856048459, now seen corresponding path program 1 times [2020-10-26 20:33:44,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:44,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600066568] [2020-10-26 20:33:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-26 20:33:46,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1791 [2020-10-26 20:33:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-26 20:33:46,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:46,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:46,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:33:46,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:46,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:33:46,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:46,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:33:46,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:46,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:46,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:33:46,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:46,860 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 20:33:46,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600066568] [2020-10-26 20:33:46,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:46,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:33:46,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74541546] [2020-10-26 20:33:46,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:46,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:46,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:46,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:46,864 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 7 states. [2020-10-26 20:33:47,009 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:33:47,389 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:49,469 INFO L93 Difference]: Finished difference Result 630 states and 920 transitions. [2020-10-26 20:33:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:49,471 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-10-26 20:33:49,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:49,478 INFO L225 Difference]: With dead ends: 630 [2020-10-26 20:33:49,478 INFO L226 Difference]: Without dead ends: 490 [2020-10-26 20:33:49,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:49,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-26 20:33:49,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 482. [2020-10-26 20:33:49,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-26 20:33:49,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 634 transitions. [2020-10-26 20:33:49,553 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 634 transitions. Word has length 103 [2020-10-26 20:33:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:49,554 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 634 transitions. [2020-10-26 20:33:49,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:49,554 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 634 transitions. [2020-10-26 20:33:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-26 20:33:49,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:49,561 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, 1] [2020-10-26 20:33:49,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:33:49,561 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:49,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:49,562 INFO L82 PathProgramCache]: Analyzing trace with hash -3468298, now seen corresponding path program 1 times [2020-10-26 20:33:49,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:49,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765912371] [2020-10-26 20:33:49,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:49,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:49,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:50,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:50,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 20:33:50,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:50,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 785 [2020-10-26 20:33:50,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-26 20:33:50,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:50,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:50,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:50,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:50,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:50,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:33:50,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:50,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:50,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:50,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:50,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:50,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:50,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:50,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:50,699 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 20:33:50,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765912371] [2020-10-26 20:33:50,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:50,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:33:50,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033521591] [2020-10-26 20:33:50,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:33:50,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:50,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:33:50,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:50,706 INFO L87 Difference]: Start difference. First operand 482 states and 634 transitions. Second operand 6 states. [2020-10-26 20:33:50,840 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:52,245 INFO L93 Difference]: Finished difference Result 1178 states and 1615 transitions. [2020-10-26 20:33:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:33:52,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2020-10-26 20:33:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:52,253 INFO L225 Difference]: With dead ends: 1178 [2020-10-26 20:33:52,253 INFO L226 Difference]: Without dead ends: 762 [2020-10-26 20:33:52,255 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 20:33:52,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-26 20:33:52,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 756. [2020-10-26 20:33:52,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-10-26 20:33:52,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 999 transitions. [2020-10-26 20:33:52,344 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 999 transitions. Word has length 106 [2020-10-26 20:33:52,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:52,349 INFO L481 AbstractCegarLoop]: Abstraction has 756 states and 999 transitions. [2020-10-26 20:33:52,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:33:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 999 transitions. [2020-10-26 20:33:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 20:33:52,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:52,359 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:52,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:33:52,363 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:52,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:52,363 INFO L82 PathProgramCache]: Analyzing trace with hash 191041392, now seen corresponding path program 1 times [2020-10-26 20:33:52,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:52,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094794343] [2020-10-26 20:33:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:54,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:55,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-26 20:33:55,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:55,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2680 [2020-10-26 20:33:55,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:33:55,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:55,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:55,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:55,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:55,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:55,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:55,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:55,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:55,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:55,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:33:55,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:55,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:55,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:33:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:55,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:55,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:55,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:33:55,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:55,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:55,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:55,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:33:55,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:33:55,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094794343] [2020-10-26 20:33:55,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:55,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:33:55,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317730889] [2020-10-26 20:33:55,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:55,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:55,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:55,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:55,414 INFO L87 Difference]: Start difference. First operand 756 states and 999 transitions. Second operand 7 states. [2020-10-26 20:33:55,549 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:57,313 INFO L93 Difference]: Finished difference Result 1732 states and 2363 transitions. [2020-10-26 20:33:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:33:57,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2020-10-26 20:33:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:57,325 INFO L225 Difference]: With dead ends: 1732 [2020-10-26 20:33:57,325 INFO L226 Difference]: Without dead ends: 1042 [2020-10-26 20:33:57,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:33:57,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2020-10-26 20:33:57,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1036. [2020-10-26 20:33:57,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1036 states. [2020-10-26 20:33:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1378 transitions. [2020-10-26 20:33:57,397 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1378 transitions. Word has length 126 [2020-10-26 20:33:57,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:57,398 INFO L481 AbstractCegarLoop]: Abstraction has 1036 states and 1378 transitions. [2020-10-26 20:33:57,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:57,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1378 transitions. [2020-10-26 20:33:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-26 20:33:57,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:57,405 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:57,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:33:57,406 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:57,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:57,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1094332939, now seen corresponding path program 1 times [2020-10-26 20:33:57,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:57,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103322913] [2020-10-26 20:33:57,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:57,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:57,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:57,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-26 20:34:00,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:00,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2967 [2020-10-26 20:34:00,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:00,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:00,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:34:00,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:00,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:00,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:34:00,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:00,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:00,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:00,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:00,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:00,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:34:00,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:00,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:34:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:00,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:00,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:00,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:00,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:34:00,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103322913] [2020-10-26 20:34:00,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:00,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:00,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520720605] [2020-10-26 20:34:00,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:00,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:00,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:00,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:00,757 INFO L87 Difference]: Start difference. First operand 1036 states and 1378 transitions. Second operand 7 states. [2020-10-26 20:34:01,964 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:02,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:02,800 INFO L93 Difference]: Finished difference Result 2451 states and 3349 transitions. [2020-10-26 20:34:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:02,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-26 20:34:02,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:02,817 INFO L225 Difference]: With dead ends: 2451 [2020-10-26 20:34:02,818 INFO L226 Difference]: Without dead ends: 1481 [2020-10-26 20:34:02,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 20:34:02,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2020-10-26 20:34:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1465. [2020-10-26 20:34:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1465 states. [2020-10-26 20:34:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1885 transitions. [2020-10-26 20:34:02,914 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1885 transitions. Word has length 141 [2020-10-26 20:34:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:02,915 INFO L481 AbstractCegarLoop]: Abstraction has 1465 states and 1885 transitions. [2020-10-26 20:34:02,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:02,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1885 transitions. [2020-10-26 20:34:02,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-26 20:34:02,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:02,921 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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 20:34:02,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:34:02,921 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash 605904019, now seen corresponding path program 1 times [2020-10-26 20:34:02,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:02,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982249249] [2020-10-26 20:34:02,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:02,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:03,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:03,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:03,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-26 20:34:06,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:34:06,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4025 [2020-10-26 20:34:06,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:34:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:34:06,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:07,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:07,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:07,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:07,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:07,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:07,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:07,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:07,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:07,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:07,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:07,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:07,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:07,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:34:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:07,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:07,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:07,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:34:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:07,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:07,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:07,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:07,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 57 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-26 20:34:07,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982249249] [2020-10-26 20:34:07,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:07,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 20:34:07,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195436972] [2020-10-26 20:34:07,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:34:07,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:07,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:34:07,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:34:07,447 INFO L87 Difference]: Start difference. First operand 1465 states and 1885 transitions. Second operand 9 states. [2020-10-26 20:34:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:09,290 INFO L93 Difference]: Finished difference Result 2892 states and 3773 transitions. [2020-10-26 20:34:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:34:09,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 149 [2020-10-26 20:34:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:09,303 INFO L225 Difference]: With dead ends: 2892 [2020-10-26 20:34:09,303 INFO L226 Difference]: Without dead ends: 1493 [2020-10-26 20:34:09,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:34:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2020-10-26 20:34:09,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1477. [2020-10-26 20:34:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1477 states. [2020-10-26 20:34:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 1905 transitions. [2020-10-26 20:34:09,380 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 1905 transitions. Word has length 149 [2020-10-26 20:34:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:09,381 INFO L481 AbstractCegarLoop]: Abstraction has 1477 states and 1905 transitions. [2020-10-26 20:34:09,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:34:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 1905 transitions. [2020-10-26 20:34:09,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-26 20:34:09,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:09,387 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 20:34:09,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:34:09,388 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:09,388 INFO L82 PathProgramCache]: Analyzing trace with hash -63404621, now seen corresponding path program 1 times [2020-10-26 20:34:09,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:09,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111527110] [2020-10-26 20:34:09,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:10,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:11,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-26 20:34:11,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1924 [2020-10-26 20:34:11,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:11,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:11,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:11,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:11,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:11,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:11,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:11,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:11,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:11,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:11,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:11,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:11,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:11,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:11,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:11,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:11,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:11,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:11,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:11,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:11,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:11,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:34:11,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:11,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:11,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:11,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:34:11,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:11,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:34:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:11,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:11,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:11,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:11,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:11,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:34:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:11,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:11,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:11,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:11,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:11,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:11,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:34:11,662 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:34:11,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111527110] [2020-10-26 20:34:11,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:11,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:11,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812389463] [2020-10-26 20:34:11,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:11,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:11,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:11,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:11,665 INFO L87 Difference]: Start difference. First operand 1477 states and 1905 transitions. Second operand 7 states. [2020-10-26 20:34:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:13,559 INFO L93 Difference]: Finished difference Result 3756 states and 5019 transitions. [2020-10-26 20:34:13,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:34:13,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-10-26 20:34:13,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:13,576 INFO L225 Difference]: With dead ends: 3756 [2020-10-26 20:34:13,577 INFO L226 Difference]: Without dead ends: 2345 [2020-10-26 20:34:13,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 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 20:34:13,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2020-10-26 20:34:13,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2311. [2020-10-26 20:34:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2311 states. [2020-10-26 20:34:13,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3010 transitions. [2020-10-26 20:34:13,686 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3010 transitions. Word has length 151 [2020-10-26 20:34:13,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:13,687 INFO L481 AbstractCegarLoop]: Abstraction has 2311 states and 3010 transitions. [2020-10-26 20:34:13,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:13,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3010 transitions. [2020-10-26 20:34:13,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-26 20:34:13,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:13,695 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:13,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:34:13,695 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:13,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:13,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1243229493, now seen corresponding path program 1 times [2020-10-26 20:34:13,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:13,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318523352] [2020-10-26 20:34:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-26 20:34:16,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:16,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2635 [2020-10-26 20:34:16,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:34:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:16,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:16,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:16,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:16,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:16,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:16,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:34:16,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 20:34:16,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:34:16,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:16,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:16,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:16,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:34:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:16,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:16,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:16,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:16,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:16,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:16,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 77 proven. 31 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:34:16,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318523352] [2020-10-26 20:34:16,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:16,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:16,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758760598] [2020-10-26 20:34:16,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:16,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:16,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:16,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:16,784 INFO L87 Difference]: Start difference. First operand 2311 states and 3010 transitions. Second operand 7 states. [2020-10-26 20:34:18,241 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-26 20:34:18,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:18,625 INFO L93 Difference]: Finished difference Result 4989 states and 6544 transitions. [2020-10-26 20:34:18,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:18,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-26 20:34:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:18,643 INFO L225 Difference]: With dead ends: 4989 [2020-10-26 20:34:18,643 INFO L226 Difference]: Without dead ends: 2744 [2020-10-26 20:34:18,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:18,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2020-10-26 20:34:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2738. [2020-10-26 20:34:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2738 states. [2020-10-26 20:34:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3525 transitions. [2020-10-26 20:34:18,769 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3525 transitions. Word has length 171 [2020-10-26 20:34:18,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:18,772 INFO L481 AbstractCegarLoop]: Abstraction has 2738 states and 3525 transitions. [2020-10-26 20:34:18,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:18,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3525 transitions. [2020-10-26 20:34:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 20:34:18,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:18,780 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:18,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:34:18,781 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:18,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:18,781 INFO L82 PathProgramCache]: Analyzing trace with hash 229710220, now seen corresponding path program 1 times [2020-10-26 20:34:18,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:18,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367784451] [2020-10-26 20:34:18,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:18,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:20,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:20,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:23,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:23,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 20:34:23,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:34:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-26 20:34:23,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:23,966 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:23,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:23,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:23,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:23,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:23,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:23,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:23,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:34:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:34:24,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:34:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 20:34:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:24,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:24,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 20:34:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:24,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:24,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 76 proven. 43 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-26 20:34:24,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367784451] [2020-10-26 20:34:24,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:24,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:24,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806412067] [2020-10-26 20:34:24,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:24,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:24,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:24,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:24,277 INFO L87 Difference]: Start difference. First operand 2738 states and 3525 transitions. Second operand 8 states. [2020-10-26 20:34:25,020 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:26,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:26,230 INFO L93 Difference]: Finished difference Result 5565 states and 7219 transitions. [2020-10-26 20:34:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:34:26,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-10-26 20:34:26,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:26,248 INFO L225 Difference]: With dead ends: 5565 [2020-10-26 20:34:26,248 INFO L226 Difference]: Without dead ends: 2893 [2020-10-26 20:34:26,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 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 20:34:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2020-10-26 20:34:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2885. [2020-10-26 20:34:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2885 states. [2020-10-26 20:34:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 3675 transitions. [2020-10-26 20:34:26,349 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 3675 transitions. Word has length 174 [2020-10-26 20:34:26,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:26,349 INFO L481 AbstractCegarLoop]: Abstraction has 2885 states and 3675 transitions. [2020-10-26 20:34:26,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 3675 transitions. [2020-10-26 20:34:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-26 20:34:26,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:26,359 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:26,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:34:26,360 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:26,360 INFO L82 PathProgramCache]: Analyzing trace with hash -693986816, now seen corresponding path program 1 times [2020-10-26 20:34:26,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:26,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143012778] [2020-10-26 20:34:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-26 20:34:28,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:28,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1756 [2020-10-26 20:34:28,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:34:28,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:28,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:28,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:28,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:28,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:28,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:28,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:28,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-26 20:34:28,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:34:28,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:28,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:34:28,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 20:34:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:28,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:28,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 99 proven. 33 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-26 20:34:28,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143012778] [2020-10-26 20:34:28,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:28,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:28,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923984378] [2020-10-26 20:34:28,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:28,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:28,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:28,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:28,617 INFO L87 Difference]: Start difference. First operand 2885 states and 3675 transitions. Second operand 7 states. [2020-10-26 20:34:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:30,412 INFO L93 Difference]: Finished difference Result 6141 states and 7949 transitions. [2020-10-26 20:34:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:30,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-10-26 20:34:30,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:30,433 INFO L225 Difference]: With dead ends: 6141 [2020-10-26 20:34:30,433 INFO L226 Difference]: Without dead ends: 3322 [2020-10-26 20:34:30,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 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 20:34:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2020-10-26 20:34:30,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 3304. [2020-10-26 20:34:30,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3304 states. [2020-10-26 20:34:30,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 4203 transitions. [2020-10-26 20:34:30,561 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 4203 transitions. Word has length 188 [2020-10-26 20:34:30,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:30,561 INFO L481 AbstractCegarLoop]: Abstraction has 3304 states and 4203 transitions. [2020-10-26 20:34:30,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 4203 transitions. [2020-10-26 20:34:30,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-26 20:34:30,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:30,571 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:30,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:34:30,572 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:30,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1257472280, now seen corresponding path program 1 times [2020-10-26 20:34:30,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:30,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585832684] [2020-10-26 20:34:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:30,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-26 20:34:31,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:31,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 986 [2020-10-26 20:34:31,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:34:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:31,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:31,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:31,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:31,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:31,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:31,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:31,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:31,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:34:31,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:31,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:34:31,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:34:31,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:34:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:31,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:34:31,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:34:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:31,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:31,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:31,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 134 proven. 14 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-26 20:34:31,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585832684] [2020-10-26 20:34:31,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:31,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:31,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902649575] [2020-10-26 20:34:31,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:31,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:31,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:31,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:31,962 INFO L87 Difference]: Start difference. First operand 3304 states and 4203 transitions. Second operand 7 states. [2020-10-26 20:34:34,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:34,022 INFO L93 Difference]: Finished difference Result 6955 states and 8908 transitions. [2020-10-26 20:34:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:34,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-10-26 20:34:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:34,043 INFO L225 Difference]: With dead ends: 6955 [2020-10-26 20:34:34,043 INFO L226 Difference]: Without dead ends: 3717 [2020-10-26 20:34:34,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2020-10-26 20:34:34,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3443. [2020-10-26 20:34:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3443 states. [2020-10-26 20:34:34,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 4337 transitions. [2020-10-26 20:34:34,171 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 4337 transitions. Word has length 204 [2020-10-26 20:34:34,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:34,172 INFO L481 AbstractCegarLoop]: Abstraction has 3443 states and 4337 transitions. [2020-10-26 20:34:34,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 4337 transitions. [2020-10-26 20:34:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-26 20:34:34,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:34,184 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-26 20:34:34,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:34:34,184 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:34,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:34,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2019943259, now seen corresponding path program 1 times [2020-10-26 20:34:34,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:34,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209718326] [2020-10-26 20:34:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:34,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:34,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:34,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1092 [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:34:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:35,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:35,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:35,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:35,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:35,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:35,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:35,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:35,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:34:35,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:35,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:35,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:34:35,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:35,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:35,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:35,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:34:35,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:35,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:34:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:35,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:35,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:35,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:34:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:35,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:34:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:35,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:35,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 175 proven. 41 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-26 20:34:35,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209718326] [2020-10-26 20:34:35,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:35,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:35,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209672617] [2020-10-26 20:34:35,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:35,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:35,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:35,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:35,799 INFO L87 Difference]: Start difference. First operand 3443 states and 4337 transitions. Second operand 7 states. [2020-10-26 20:34:36,215 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:37,979 INFO L93 Difference]: Finished difference Result 6836 states and 8608 transitions. [2020-10-26 20:34:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:37,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-26 20:34:37,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:38,001 INFO L225 Difference]: With dead ends: 6836 [2020-10-26 20:34:38,001 INFO L226 Difference]: Without dead ends: 3459 [2020-10-26 20:34:38,009 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 20:34:38,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2020-10-26 20:34:38,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3449. [2020-10-26 20:34:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3449 states. [2020-10-26 20:34:38,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 4223 transitions. [2020-10-26 20:34:38,098 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 4223 transitions. Word has length 235 [2020-10-26 20:34:38,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:38,098 INFO L481 AbstractCegarLoop]: Abstraction has 3449 states and 4223 transitions. [2020-10-26 20:34:38,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 4223 transitions. [2020-10-26 20:34:38,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-26 20:34:38,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:38,109 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:34:38,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:34:38,110 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:38,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:38,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1284851738, now seen corresponding path program 1 times [2020-10-26 20:34:38,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:38,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657375995] [2020-10-26 20:34:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:38,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1455 [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:39,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:39,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:39,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:39,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:34:39,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:39,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:39,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:39,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:39,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:34:39,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-26 20:34:39,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:39,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:34:39,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:34:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:39,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:34:39,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:39,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:40,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:34:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:40,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:40,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:40,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 187 proven. 14 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-26 20:34:40,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657375995] [2020-10-26 20:34:40,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:40,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:40,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170678018] [2020-10-26 20:34:40,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:40,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:40,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:40,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:40,099 INFO L87 Difference]: Start difference. First operand 3449 states and 4223 transitions. Second operand 8 states. [2020-10-26 20:34:40,251 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:41,029 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:34:43,111 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-26 20:34:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:43,175 INFO L93 Difference]: Finished difference Result 6995 states and 8590 transitions. [2020-10-26 20:34:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:34:43,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 246 [2020-10-26 20:34:43,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:43,198 INFO L225 Difference]: With dead ends: 6995 [2020-10-26 20:34:43,199 INFO L226 Difference]: Without dead ends: 3469 [2020-10-26 20:34:43,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:34:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3469 states. [2020-10-26 20:34:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3469 to 3449. [2020-10-26 20:34:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3449 states. [2020-10-26 20:34:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 4170 transitions. [2020-10-26 20:34:43,321 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 4170 transitions. Word has length 246 [2020-10-26 20:34:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:43,321 INFO L481 AbstractCegarLoop]: Abstraction has 3449 states and 4170 transitions. [2020-10-26 20:34:43,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:43,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 4170 transitions. [2020-10-26 20:34:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-26 20:34:43,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:43,336 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:43,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:34:43,336 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:43,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:43,337 INFO L82 PathProgramCache]: Analyzing trace with hash -152897191, now seen corresponding path program 1 times [2020-10-26 20:34:43,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:43,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411809874] [2020-10-26 20:34:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-26 20:34:44,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:44,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-10-26 20:34:44,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-26 20:34:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 20:34:44,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:44,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:34:44,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:44,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:34:44,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:44,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:44,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:44,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:34:44,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:34:44,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-26 20:34:44,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411809874] [2020-10-26 20:34:44,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:44,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:34:44,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435974794] [2020-10-26 20:34:44,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:44,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:44,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:44,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:44,972 INFO L87 Difference]: Start difference. First operand 3449 states and 4170 transitions. Second operand 6 states. [2020-10-26 20:34:45,803 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:34:46,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:46,202 INFO L93 Difference]: Finished difference Result 6917 states and 8392 transitions. [2020-10-26 20:34:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:46,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-10-26 20:34:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:46,228 INFO L225 Difference]: With dead ends: 6917 [2020-10-26 20:34:46,228 INFO L226 Difference]: Without dead ends: 3455 [2020-10-26 20:34:46,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455 states. [2020-10-26 20:34:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3455 to 3447. [2020-10-26 20:34:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3447 states. [2020-10-26 20:34:46,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3447 states to 3447 states and 4161 transitions. [2020-10-26 20:34:46,320 INFO L78 Accepts]: Start accepts. Automaton has 3447 states and 4161 transitions. Word has length 257 [2020-10-26 20:34:46,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:46,320 INFO L481 AbstractCegarLoop]: Abstraction has 3447 states and 4161 transitions. [2020-10-26 20:34:46,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:46,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3447 states and 4161 transitions. [2020-10-26 20:34:46,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-26 20:34:46,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:46,332 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:34:46,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:34:46,333 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:46,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:46,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1627953720, now seen corresponding path program 1 times [2020-10-26 20:34:46,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:46,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614236900] [2020-10-26 20:34:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:46,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:46,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:46,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 20:34:46,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:47,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:47,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:47,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:47,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:47,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:47,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:47,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:47,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:47,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:47,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:47,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:47,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:47,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:47,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:47,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:34:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-26 20:34:47,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614236900] [2020-10-26 20:34:47,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:47,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:47,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535808955] [2020-10-26 20:34:47,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:34:47,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:47,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:34:47,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:34:47,456 INFO L87 Difference]: Start difference. First operand 3447 states and 4161 transitions. Second operand 5 states. [2020-10-26 20:34:48,326 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:34:48,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:48,727 INFO L93 Difference]: Finished difference Result 6782 states and 8201 transitions. [2020-10-26 20:34:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:48,728 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2020-10-26 20:34:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:48,739 INFO L225 Difference]: With dead ends: 6782 [2020-10-26 20:34:48,739 INFO L226 Difference]: Without dead ends: 3318 [2020-10-26 20:34:48,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2020-10-26 20:34:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3308. [2020-10-26 20:34:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3308 states. [2020-10-26 20:34:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3308 states to 3308 states and 3989 transitions. [2020-10-26 20:34:48,824 INFO L78 Accepts]: Start accepts. Automaton has 3308 states and 3989 transitions. Word has length 256 [2020-10-26 20:34:48,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:48,824 INFO L481 AbstractCegarLoop]: Abstraction has 3308 states and 3989 transitions. [2020-10-26 20:34:48,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:34:48,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3308 states and 3989 transitions. [2020-10-26 20:34:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-26 20:34:48,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:48,835 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, 1] [2020-10-26 20:34:48,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:34:48,836 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:48,836 INFO L82 PathProgramCache]: Analyzing trace with hash -44830546, now seen corresponding path program 1 times [2020-10-26 20:34:48,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:48,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730954513] [2020-10-26 20:34:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-26 20:34:51,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:51,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2317 [2020-10-26 20:34:51,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:51,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:34:51,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-26 20:34:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:51,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:51,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:51,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:51,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:51,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:51,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:51,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:34:51,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:34:51,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:34:51,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:34:51,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 214 proven. 29 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:34:51,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730954513] [2020-10-26 20:34:51,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:51,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:51,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046157902] [2020-10-26 20:34:51,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:51,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:51,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:51,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:51,664 INFO L87 Difference]: Start difference. First operand 3308 states and 3989 transitions. Second operand 7 states. [2020-10-26 20:34:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:53,172 INFO L93 Difference]: Finished difference Result 6872 states and 8383 transitions. [2020-10-26 20:34:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:34:53,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 266 [2020-10-26 20:34:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:53,186 INFO L225 Difference]: With dead ends: 6872 [2020-10-26 20:34:53,186 INFO L226 Difference]: Without dead ends: 3064 [2020-10-26 20:34:53,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:53,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2020-10-26 20:34:53,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2875. [2020-10-26 20:34:53,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2020-10-26 20:34:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3182 transitions. [2020-10-26 20:34:53,270 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3182 transitions. Word has length 266 [2020-10-26 20:34:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:53,271 INFO L481 AbstractCegarLoop]: Abstraction has 2875 states and 3182 transitions. [2020-10-26 20:34:53,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3182 transitions. [2020-10-26 20:34:53,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-26 20:34:53,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:53,283 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:34:53,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:34:53,283 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:53,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:53,284 INFO L82 PathProgramCache]: Analyzing trace with hash 532845811, now seen corresponding path program 1 times [2020-10-26 20:34:53,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:53,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489785326] [2020-10-26 20:34:53,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-26 20:34:54,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:54,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-10-26 20:34:54,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:54,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:34:54,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 20:34:54,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:54,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:54,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 20:34:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-26 20:34:54,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489785326] [2020-10-26 20:34:54,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:54,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:34:54,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944563465] [2020-10-26 20:34:54,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:54,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:54,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:54,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:54,438 INFO L87 Difference]: Start difference. First operand 2875 states and 3182 transitions. Second operand 6 states. [2020-10-26 20:34:55,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:55,754 INFO L93 Difference]: Finished difference Result 5822 states and 6470 transitions. [2020-10-26 20:34:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:55,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 295 [2020-10-26 20:34:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:55,755 INFO L225 Difference]: With dead ends: 5822 [2020-10-26 20:34:55,755 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:34:55,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:34:55,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:34:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:34:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:34:55,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2020-10-26 20:34:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:55,769 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:34:55,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:34:55,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:34:55,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 20:34:55,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:34:56,806 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 205 [2020-10-26 20:34:57,002 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 184 [2020-10-26 20:34:57,285 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 40 [2020-10-26 20:34:58,656 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 258 DAG size of output: 63 [2020-10-26 20:34:58,991 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 51 [2020-10-26 20:34:59,102 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:59,498 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 51 [2020-10-26 20:34:59,841 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 43 [2020-10-26 20:34:59,845 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:34:59,845 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:34:59,845 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:34:59,846 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:34:59,846 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:59,847 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 20:34:59,848 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:59,848 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,848 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,848 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,848 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,848 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,848 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,849 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:34:59,849 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:34:59,849 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:34:59,849 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:34:59,849 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:34:59,849 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:34:59,849 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:34:59,850 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:34:59,850 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:34:59,850 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:34:59,850 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,851 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,852 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,853 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,853 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,853 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,853 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:34:59,853 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:34:59,853 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:34:59,854 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:34:59,855 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:34:59,855 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:34:59,855 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:34:59,856 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,857 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,857 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,857 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,859 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,859 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:34:59,859 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:34:59,859 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:34:59,860 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:34:59,860 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:34:59,860 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:34:59,861 INFO L270 CegarLoopResult]: At program point L442(line 442) the Hoare annotation is: (let ((.cse0 (not (= |old(~a20~0)| 1))) (.cse1 (not (= |old(~a21~0)| 1))) (.cse2 (not (<= |old(~a20~0)| 0)))) (and (not (= |old(~a8~0)| 13)) (or .cse0 .cse1 (= |old(~a7~0)| 1)) (or (and (not (<= |old(~a7~0)| 0)) (not (<= 2 |old(~a7~0)|))) .cse1 .cse2) (or (not (= 14 |old(~a8~0)|)) .cse0 (not (= 5 |old(~a16~0)|)) .cse1 (not (= ~a12~0 8)) (not (= 0 |old(~a17~0)|))) (or (not (<= |old(~a16~0)| 5)) .cse1 .cse2))) [2020-10-26 20:34:59,861 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:34:59,862 INFO L274 CegarLoopResult]: For program point L442-1(line 442) no Hoare annotation was computed. [2020-10-26 20:34:59,862 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:34:59,862 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,862 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,863 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,863 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,863 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,863 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:34:59,863 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:34:59,867 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:34:59,868 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:34:59,868 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:34:59,868 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:34:59,868 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:34:59,868 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,869 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,870 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:34:59,871 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,872 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:34:59,873 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:34:59,873 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:34:59,873 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:34:59,873 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:34:59,873 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:34:59,875 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:34:59,875 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:34:59,875 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,875 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,875 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse8 (= ~a21~0 1)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse6 (= ~a16~0 |old(~a16~0)|))) (let ((.cse0 (not (= |old(~a20~0)| 1))) (.cse1 (and .cse3 .cse4 .cse8 .cse5 .cse6 (= ~a8~0 |old(~a8~0)|))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse7 (not (<= |old(~a20~0)| 0)))) (and (or .cse0 .cse1 .cse2 (= |old(~a7~0)| 1)) (or (not (= |old(~a8~0)| 13)) (and .cse3 .cse4 (= ~a21~0 |old(~a21~0)|) .cse5 .cse6 (= ~a8~0 13))) (or (not (<= |old(~a16~0)| 5)) .cse1 .cse2 .cse7) (or (not (= 14 |old(~a8~0)|)) .cse0 (and .cse3 .cse4 .cse8 .cse5 (= 14 ~a8~0) (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse2 (not (= ~a12~0 8)) (not (= 0 |old(~a17~0)|))) (or (and (not (<= |old(~a7~0)| 0)) (not (<= 2 |old(~a7~0)|))) .cse1 .cse2 .cse7)))) [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:34:59,876 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,877 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:34:59,878 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:34:59,879 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:34:59,880 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:34:59,880 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:34:59,880 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:34:59,880 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:34:59,880 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:34:59,880 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:34:59,881 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:34:59,881 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:34:59,881 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:34:59,881 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:34:59,881 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:34:59,881 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:59,881 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 20:34:59,881 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:34:59,882 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:59,882 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 20:34:59,882 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:59,884 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse1 (or (<= 2 ~a7~0) (<= ~a7~0 0))) (.cse3 (<= ~a20~0 0)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a20~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2) (not (= |old(~a20~0)| 1)) (= ~a8~0 13) (and .cse0 .cse1 .cse3) (and .cse0 (<= ~a16~0 5) .cse3) (and .cse0 (= 14 ~a8~0) .cse2 (= 5 ~a16~0) (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:34:59,884 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:34:59,884 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:34:59,885 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (or (<= 2 ~a7~0) (<= ~a7~0 0))) (.cse3 (<= ~a20~0 0)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a20~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2) (not (= |old(~a20~0)| 1)) (= ~a8~0 13) (and .cse0 .cse1 .cse3) (and .cse0 (<= ~a16~0 5) .cse3) (and .cse0 (= 14 ~a8~0) .cse2 (= 5 ~a16~0) (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:34:59,885 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:59,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:34:59 BoogieIcfgContainer [2020-10-26 20:34:59,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:34:59,915 INFO L168 Benchmark]: Toolchain (without parser) took 87975.64 ms. Allocated memory was 154.1 MB in the beginning and 1.0 GB in the end (delta: 888.1 MB). Free memory was 127.5 MB in the beginning and 918.6 MB in the end (delta: -791.1 MB). Peak memory consumption was 622.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:59,915 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 129.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:34:59,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.82 ms. Allocated memory is still 154.1 MB. Free memory was 127.0 MB in the beginning and 100.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:59,919 INFO L168 Benchmark]: Boogie Preprocessor took 213.77 ms. Allocated memory is still 154.1 MB. Free memory was 100.2 MB in the beginning and 132.0 MB in the end (delta: -31.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:59,919 INFO L168 Benchmark]: RCFGBuilder took 1467.38 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 132.0 MB in the beginning and 128.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:59,920 INFO L168 Benchmark]: TraceAbstraction took 85510.09 ms. Allocated memory was 192.9 MB in the beginning and 1.0 GB in the end (delta: 849.3 MB). Free memory was 128.2 MB in the beginning and 918.6 MB in the end (delta: -790.4 MB). Peak memory consumption was 584.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:59,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 129.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 769.82 ms. Allocated memory is still 154.1 MB. Free memory was 127.0 MB in the beginning and 100.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 213.77 ms. Allocated memory is still 154.1 MB. Free memory was 100.2 MB in the beginning and 132.0 MB in the end (delta: -31.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1467.38 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 132.0 MB in the beginning and 128.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 85510.09 ms. Allocated memory was 192.9 MB in the beginning and 1.0 GB in the end (delta: 849.3 MB). Free memory was 128.2 MB in the beginning and 918.6 MB in the end (delta: -790.4 MB). Peak memory consumption was 584.3 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: ((((((((((!(\old(a17) == 1) || ((a21 == 1 && (2 <= a7 || a7 <= 0)) && a20 == 1)) || !(\old(a20) == 1)) || a8 == 13) || ((a21 == 1 && (2 <= a7 || a7 <= 0)) && a20 <= 0)) || ((a21 == 1 && a16 <= 5) && a20 <= 0)) || ((((a21 == 1 && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || !(5 == \old(a16))) || !(\old(a21) == 1)) || !(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: 81.3s, OverallIterations: 17, TraceHistogramMax: 6, AutomataDifference: 36.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 446 SDtfs, 6882 SDslu, 644 SDs, 0 SdLazy, 14520 SolverSat, 1976 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 200 SyntacticMatches, 5 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3449occurred 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: 1.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 629 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 589 PreInvPairs, 647 NumberOfFragments, 574 HoareAnnotationTreeSize, 589 FomulaSimplifications, 11923 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6795 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 41.0s InterpolantComputationTime, 3163 NumberOfCodeBlocks, 3163 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3146 ConstructedInterpolants, 0 QuantifiedInterpolants, 2929483 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2706/2995 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...