/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_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:33:45,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:33:45,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:33:45,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:33:45,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:33:45,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:33:45,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:33:45,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:33:45,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:33:45,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:33:45,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:33:45,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:33:45,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:33:45,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:33:45,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:33:45,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:33:45,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:33:45,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:33:45,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:33:45,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:33:45,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:33:45,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:33:45,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:33:45,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:33:45,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:33:45,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:33:45,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:33:45,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:33:45,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:33:45,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:33:45,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:33:45,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:33:45,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:33:45,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:33:45,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:33:45,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:33:45,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:33:45,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:33:45,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:33:45,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:33:45,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:33:45,536 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 20:33:45,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:33:45,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:33:45,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:33:45,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:33:45,566 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:33:45,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:33:45,567 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:33:45,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:33:45,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:33:45,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:33:45,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:33:45,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:33:45,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:33:45,568 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:33:45,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:33:45,569 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:33:45,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:33:45,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:33:45,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:33:45,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:33:45,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:33:45,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:33:45,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:33:45,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:33:45,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:33:45,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:33:45,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:33:45,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:33:45,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:33:45,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:33:45,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:33:46,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:33:46,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:33:46,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:33:46,019 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:33:46,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label28.c [2020-10-26 20:33:46,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf0557875/a88cd3fc6a154b628e593406e38e42ce/FLAG2d06691a4 [2020-10-26 20:33:46,869 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:33:46,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label28.c [2020-10-26 20:33:46,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf0557875/a88cd3fc6a154b628e593406e38e42ce/FLAG2d06691a4 [2020-10-26 20:33:47,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf0557875/a88cd3fc6a154b628e593406e38e42ce [2020-10-26 20:33:47,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:33:47,130 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:33:47,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:47,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:33:47,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:33:47,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583a4efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47, skipping insertion in model container [2020-10-26 20:33:47,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:33:47,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:33:47,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:47,628 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:33:47,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:47,784 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:33:47,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47 WrapperNode [2020-10-26 20:33:47,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:47,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:33:47,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:33:47,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:33:47,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (1/1) ... [2020-10-26 20:33:47,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:33:47,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:33:47,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:33:47,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:33:47,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (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 20:33:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:33:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:33:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:33:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:33:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:33:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:33:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:33:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:33:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:33:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:33:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:33:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:33:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:33:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:33:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:33:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:33:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:33:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:33:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:33:49,426 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:33:49,426 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:33:49,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:49 BoogieIcfgContainer [2020-10-26 20:33:49,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:33:49,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:33:49,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:33:49,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:33:49,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:33:47" (1/3) ... [2020-10-26 20:33:49,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761173d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:49, skipping insertion in model container [2020-10-26 20:33:49,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:47" (2/3) ... [2020-10-26 20:33:49,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761173d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:49, skipping insertion in model container [2020-10-26 20:33:49,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:49" (3/3) ... [2020-10-26 20:33:49,438 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label28.c [2020-10-26 20:33:49,449 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:33:49,455 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:33:49,471 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:33:49,500 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:33:49,500 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:33:49,500 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:33:49,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:33:49,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:33:49,501 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:33:49,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:33:49,501 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:33:49,528 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:33:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-26 20:33:49,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:49,540 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, 1, 1, 1, 1, 1] [2020-10-26 20:33:49,541 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:49,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:49,548 INFO L82 PathProgramCache]: Analyzing trace with hash 914253345, now seen corresponding path program 1 times [2020-10-26 20:33:49,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:49,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166655609] [2020-10-26 20:33:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:49,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:50,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 20:33:51,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:51,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1731 [2020-10-26 20:33:51,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:33:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:51,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:33:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:33:52,106 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2020-10-26 20:33:52,555 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:52,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:52,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:52,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:52,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:33:52,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:52,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:52,736 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 20:33:52,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166655609] [2020-10-26 20:33:52,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:52,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:33:52,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254980642] [2020-10-26 20:33:52,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:33:52,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:52,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:33:52,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:52,775 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:33:53,150 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:33:53,385 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:33:53,573 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:33:53,767 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-26 20:33:54,156 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-26 20:33:54,608 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-26 20:33:55,236 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-26 20:33:55,936 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2020-10-26 20:33:56,437 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-26 20:33:57,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:57,756 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:33:57,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:33:57,758 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 100 [2020-10-26 20:33:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:57,778 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:33:57,778 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:33:57,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:33:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:33:57,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:33:57,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:33:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:33:57,859 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 100 [2020-10-26 20:33:57,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:57,860 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:33:57,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:33:57,860 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:33:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-26 20:33:57,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:57,866 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, 1, 1, 1, 1, 1] [2020-10-26 20:33:57,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:33:57,867 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:57,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:57,867 INFO L82 PathProgramCache]: Analyzing trace with hash -334263745, now seen corresponding path program 1 times [2020-10-26 20:33:57,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:57,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219602629] [2020-10-26 20:33:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:57,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 20:33:59,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-10-26 20:33:59,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 20:33:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:59,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:59,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:59,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:59,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:59,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:33:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,898 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 20:33:59,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219602629] [2020-10-26 20:33:59,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:59,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:33:59,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490178836] [2020-10-26 20:33:59,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:33:59,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:59,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:33:59,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:59,902 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:34:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:01,296 INFO L93 Difference]: Finished difference Result 491 states and 703 transitions. [2020-10-26 20:34:01,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:34:01,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2020-10-26 20:34:01,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:01,302 INFO L225 Difference]: With dead ends: 491 [2020-10-26 20:34:01,302 INFO L226 Difference]: Without dead ends: 351 [2020-10-26 20:34:01,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-26 20:34:01,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2020-10-26 20:34:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-26 20:34:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-10-26 20:34:01,341 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 108 [2020-10-26 20:34:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:01,342 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-10-26 20:34:01,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-10-26 20:34:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-26 20:34:01,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:01,346 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, 1, 1, 1, 1, 1] [2020-10-26 20:34:01,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:34:01,347 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:01,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:01,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1200909410, now seen corresponding path program 1 times [2020-10-26 20:34:01,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:01,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529491311] [2020-10-26 20:34:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:01,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:01,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:02,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:02,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 20:34:02,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-10-26 20:34:02,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 20:34:02,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:34:02,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:02,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:02,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:02,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:02,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:34:02,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:02,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:02,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:02,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:02,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:02,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:02,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:02,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:34:02,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:02,551 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 20:34:02,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529491311] [2020-10-26 20:34:02,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:02,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:02,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299714319] [2020-10-26 20:34:02,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:02,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:02,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:02,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:02,556 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-10-26 20:34:03,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:03,907 INFO L93 Difference]: Finished difference Result 908 states and 1279 transitions. [2020-10-26 20:34:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:34:03,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-10-26 20:34:03,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:03,919 INFO L225 Difference]: With dead ends: 908 [2020-10-26 20:34:03,919 INFO L226 Difference]: Without dead ends: 629 [2020-10-26 20:34:03,923 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 20:34:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-10-26 20:34:03,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 623. [2020-10-26 20:34:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-10-26 20:34:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 836 transitions. [2020-10-26 20:34:03,985 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 836 transitions. Word has length 111 [2020-10-26 20:34:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:03,990 INFO L481 AbstractCegarLoop]: Abstraction has 623 states and 836 transitions. [2020-10-26 20:34:03,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:03,990 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 836 transitions. [2020-10-26 20:34:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-26 20:34:03,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:03,997 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:03,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:34:03,998 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:03,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:03,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1757164765, now seen corresponding path program 1 times [2020-10-26 20:34:03,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:04,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267590416] [2020-10-26 20:34:04,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:04,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:09,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 20:34:09,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-26 20:34:09,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:09,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:09,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:09,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:34:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:09,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:09,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:09,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:09,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:09,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:09,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:09,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:09,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:09,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:09,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:34:09,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:09,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:09,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:09,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:09,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:09,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:09,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:09,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:34:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:34:09,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267590416] [2020-10-26 20:34:09,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:09,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:09,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235772049] [2020-10-26 20:34:09,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:09,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:09,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:09,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:09,391 INFO L87 Difference]: Start difference. First operand 623 states and 836 transitions. Second operand 8 states. [2020-10-26 20:34:10,656 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:11,445 INFO L93 Difference]: Finished difference Result 1762 states and 2439 transitions. [2020-10-26 20:34:11,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:34:11,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-10-26 20:34:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:11,453 INFO L225 Difference]: With dead ends: 1762 [2020-10-26 20:34:11,454 INFO L226 Difference]: Without dead ends: 1205 [2020-10-26 20:34:11,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:11,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2020-10-26 20:34:11,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1197. [2020-10-26 20:34:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-10-26 20:34:11,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1582 transitions. [2020-10-26 20:34:11,510 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1582 transitions. Word has length 124 [2020-10-26 20:34:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:11,510 INFO L481 AbstractCegarLoop]: Abstraction has 1197 states and 1582 transitions. [2020-10-26 20:34:11,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:11,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1582 transitions. [2020-10-26 20:34:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-26 20:34:11,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:11,515 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:11,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:34:11,516 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:11,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:11,516 INFO L82 PathProgramCache]: Analyzing trace with hash 141939057, now seen corresponding path program 1 times [2020-10-26 20:34:11,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:11,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455365420] [2020-10-26 20:34:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:11,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-26 20:34:16,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:16,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:34:16,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:34:16,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:16,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:16,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:16,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:16,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:16,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:16,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:16,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:16,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:34:16,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:16,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:34:16,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:16,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:34:16,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:34:16,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455365420] [2020-10-26 20:34:16,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:16,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:16,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239292731] [2020-10-26 20:34:16,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:16,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:16,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:16,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:16,954 INFO L87 Difference]: Start difference. First operand 1197 states and 1582 transitions. Second operand 8 states. [2020-10-26 20:34:17,095 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:18,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:18,831 INFO L93 Difference]: Finished difference Result 2364 states and 3185 transitions. [2020-10-26 20:34:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:34:18,832 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2020-10-26 20:34:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:18,841 INFO L225 Difference]: With dead ends: 2364 [2020-10-26 20:34:18,841 INFO L226 Difference]: Without dead ends: 1233 [2020-10-26 20:34:18,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:34:18,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2020-10-26 20:34:18,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1213. [2020-10-26 20:34:18,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1213 states. [2020-10-26 20:34:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1596 transitions. [2020-10-26 20:34:18,914 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1596 transitions. Word has length 130 [2020-10-26 20:34:18,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:18,915 INFO L481 AbstractCegarLoop]: Abstraction has 1213 states and 1596 transitions. [2020-10-26 20:34:18,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1596 transitions. [2020-10-26 20:34:18,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 20:34:18,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:18,919 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:18,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:34:18,920 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:18,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:18,921 INFO L82 PathProgramCache]: Analyzing trace with hash -570630529, now seen corresponding path program 1 times [2020-10-26 20:34:18,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:18,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262417852] [2020-10-26 20:34:18,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:18,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:20,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:23,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:23,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 20:34:23,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-26 20:34:23,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:34:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:34:23,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:24,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:24,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:24,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:24,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:34:24,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:24,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:24,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:24,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:24,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:24,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:34:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:24,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:34:24,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262417852] [2020-10-26 20:34:24,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:24,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:24,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645871891] [2020-10-26 20:34:24,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:24,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:24,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:24,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:24,275 INFO L87 Difference]: Start difference. First operand 1213 states and 1596 transitions. Second operand 7 states. [2020-10-26 20:34:24,620 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:26,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:26,259 INFO L93 Difference]: Finished difference Result 2376 states and 3214 transitions. [2020-10-26 20:34:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:26,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-10-26 20:34:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:26,268 INFO L225 Difference]: With dead ends: 2376 [2020-10-26 20:34:26,268 INFO L226 Difference]: Without dead ends: 1229 [2020-10-26 20:34:26,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:26,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-10-26 20:34:26,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1070. [2020-10-26 20:34:26,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2020-10-26 20:34:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1311 transitions. [2020-10-26 20:34:26,327 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1311 transitions. Word has length 132 [2020-10-26 20:34:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:26,327 INFO L481 AbstractCegarLoop]: Abstraction has 1070 states and 1311 transitions. [2020-10-26 20:34:26,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1311 transitions. [2020-10-26 20:34:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-26 20:34:26,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:26,332 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, 1, 1, 1, 1, 1] [2020-10-26 20:34:26,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:34:26,332 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:26,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:26,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1942467684, now seen corresponding path program 1 times [2020-10-26 20:34:26,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:26,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283172930] [2020-10-26 20:34:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:26,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-26 20:34:28,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:28,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2060 [2020-10-26 20:34:28,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:28,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:28,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:34:28,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:28,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:28,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:28,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:28,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:28,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:28,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:34:28,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:28,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:28,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:28,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:28,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:34:28,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:34:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,740 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 20:34:28,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283172930] [2020-10-26 20:34:28,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:28,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:34:28,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909297460] [2020-10-26 20:34:28,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:28,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:28,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:28,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:28,744 INFO L87 Difference]: Start difference. First operand 1070 states and 1311 transitions. Second operand 7 states. [2020-10-26 20:34:30,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:30,193 INFO L93 Difference]: Finished difference Result 2356 states and 2900 transitions. [2020-10-26 20:34:30,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:34:30,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-26 20:34:30,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:30,204 INFO L225 Difference]: With dead ends: 2356 [2020-10-26 20:34:30,204 INFO L226 Difference]: Without dead ends: 1352 [2020-10-26 20:34:30,207 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 20:34:30,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-10-26 20:34:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1348. [2020-10-26 20:34:30,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1348 states. [2020-10-26 20:34:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1614 transitions. [2020-10-26 20:34:30,254 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1614 transitions. Word has length 131 [2020-10-26 20:34:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:30,254 INFO L481 AbstractCegarLoop]: Abstraction has 1348 states and 1614 transitions. [2020-10-26 20:34:30,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1614 transitions. [2020-10-26 20:34:30,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-26 20:34:30,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:30,259 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-26 20:34:30,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:34:30,259 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:30,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:30,260 INFO L82 PathProgramCache]: Analyzing trace with hash 944176830, now seen corresponding path program 1 times [2020-10-26 20:34:30,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:30,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546357859] [2020-10-26 20:34:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:30,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:32,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-26 20:34:33,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2803 [2020-10-26 20:34:33,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:34:33,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:33,215 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:33,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:33,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:33,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:33,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:33,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:33,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:33,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:33,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:33,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:33,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:33,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:33,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:34:33,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:33,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:34:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:33,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:33,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:33,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:34:33,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546357859] [2020-10-26 20:34:33,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:33,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:33,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766909979] [2020-10-26 20:34:33,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:33,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:33,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:33,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:33,449 INFO L87 Difference]: Start difference. First operand 1348 states and 1614 transitions. Second operand 8 states. [2020-10-26 20:34:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:35,084 INFO L93 Difference]: Finished difference Result 2640 states and 3167 transitions. [2020-10-26 20:34:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:35,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 143 [2020-10-26 20:34:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:35,092 INFO L225 Difference]: With dead ends: 2640 [2020-10-26 20:34:35,092 INFO L226 Difference]: Without dead ends: 1213 [2020-10-26 20:34:35,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:35,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-10-26 20:34:35,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1207. [2020-10-26 20:34:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2020-10-26 20:34:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1390 transitions. [2020-10-26 20:34:35,140 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1390 transitions. Word has length 143 [2020-10-26 20:34:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:35,140 INFO L481 AbstractCegarLoop]: Abstraction has 1207 states and 1390 transitions. [2020-10-26 20:34:35,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:35,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1390 transitions. [2020-10-26 20:34:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-26 20:34:35,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:35,145 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, 1, 1, 1, 1, 1] [2020-10-26 20:34:35,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:34:35,145 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:35,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:35,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1908363263, now seen corresponding path program 1 times [2020-10-26 20:34:35,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:35,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408021579] [2020-10-26 20:34:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:35,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3454 [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:34:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:38,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:38,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:38,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:38,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:38,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:38,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:38,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:38,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:38,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:38,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:38,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:38,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:38,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:38,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:38,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:38,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:38,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:38,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:38,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:34:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:38,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:34:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:38,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:38,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:38,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:38,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:38,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:38,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:38,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:38,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:38,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:38,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:34:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:38,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:38,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:38,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:38,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:38,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,021 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 62 proven. 26 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-26 20:34:39,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408021579] [2020-10-26 20:34:39,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:39,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:39,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997287540] [2020-10-26 20:34:39,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:39,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:39,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:39,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:39,024 INFO L87 Difference]: Start difference. First operand 1207 states and 1390 transitions. Second operand 8 states. [2020-10-26 20:34:40,683 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-26 20:34:40,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:40,742 INFO L93 Difference]: Finished difference Result 2916 states and 3421 transitions. [2020-10-26 20:34:40,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:40,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2020-10-26 20:34:40,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:40,752 INFO L225 Difference]: With dead ends: 2916 [2020-10-26 20:34:40,752 INFO L226 Difference]: Without dead ends: 1775 [2020-10-26 20:34:40,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:34:40,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-10-26 20:34:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1757. [2020-10-26 20:34:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1757 states. [2020-10-26 20:34:40,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2024 transitions. [2020-10-26 20:34:40,814 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2024 transitions. Word has length 156 [2020-10-26 20:34:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:40,814 INFO L481 AbstractCegarLoop]: Abstraction has 1757 states and 2024 transitions. [2020-10-26 20:34:40,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:40,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2024 transitions. [2020-10-26 20:34:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-26 20:34:40,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:40,819 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:40,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:34:40,820 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:40,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:40,820 INFO L82 PathProgramCache]: Analyzing trace with hash 100494893, now seen corresponding path program 1 times [2020-10-26 20:34:40,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:40,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724313977] [2020-10-26 20:34:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:40,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:41,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:42,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:42,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 20:34:44,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:44,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3993 [2020-10-26 20:34:44,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:34:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:44,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:44,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:44,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:44,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:45,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:34:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:45,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:34:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:45,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:45,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:45,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:45,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:45,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:34:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:45,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:45,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:45,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:45,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:45,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:45,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 63 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:34:45,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724313977] [2020-10-26 20:34:45,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:45,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:45,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293245038] [2020-10-26 20:34:45,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:45,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:45,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:45,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:45,133 INFO L87 Difference]: Start difference. First operand 1757 states and 2024 transitions. Second operand 7 states. [2020-10-26 20:34:45,272 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:34:46,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:46,697 INFO L93 Difference]: Finished difference Result 3730 states and 4310 transitions. [2020-10-26 20:34:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:46,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-10-26 20:34:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:46,712 INFO L225 Difference]: With dead ends: 3730 [2020-10-26 20:34:46,713 INFO L226 Difference]: Without dead ends: 2039 [2020-10-26 20:34:46,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2020-10-26 20:34:46,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2037. [2020-10-26 20:34:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2037 states. [2020-10-26 20:34:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2328 transitions. [2020-10-26 20:34:46,778 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2328 transitions. Word has length 162 [2020-10-26 20:34:46,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:46,778 INFO L481 AbstractCegarLoop]: Abstraction has 2037 states and 2328 transitions. [2020-10-26 20:34:46,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:46,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2328 transitions. [2020-10-26 20:34:46,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-26 20:34:46,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:46,785 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:46,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:34:46,785 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:46,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:46,786 INFO L82 PathProgramCache]: Analyzing trace with hash 652609627, now seen corresponding path program 1 times [2020-10-26 20:34:46,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:46,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543649544] [2020-10-26 20:34:46,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:46,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:46,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 20:34:49,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:49,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2677 [2020-10-26 20:34:49,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:49,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:49,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:34:49,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:49,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:34:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:49,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:34:49,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:34:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:49,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:49,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:49,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:49,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:49,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,951 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 72 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-26 20:34:49,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543649544] [2020-10-26 20:34:49,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:49,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:49,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444016905] [2020-10-26 20:34:49,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:49,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:49,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:49,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:49,953 INFO L87 Difference]: Start difference. First operand 2037 states and 2328 transitions. Second operand 7 states. [2020-10-26 20:34:50,099 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:50,704 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:51,585 INFO L93 Difference]: Finished difference Result 4147 states and 4740 transitions. [2020-10-26 20:34:51,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:51,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-10-26 20:34:51,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:51,597 INFO L225 Difference]: With dead ends: 4147 [2020-10-26 20:34:51,597 INFO L226 Difference]: Without dead ends: 2176 [2020-10-26 20:34:51,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2020-10-26 20:34:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2174. [2020-10-26 20:34:51,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2174 states. [2020-10-26 20:34:51,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2460 transitions. [2020-10-26 20:34:51,663 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2460 transitions. Word has length 176 [2020-10-26 20:34:51,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:51,663 INFO L481 AbstractCegarLoop]: Abstraction has 2174 states and 2460 transitions. [2020-10-26 20:34:51,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:51,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2460 transitions. [2020-10-26 20:34:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-26 20:34:51,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:51,671 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, 1, 1, 1, 1, 1] [2020-10-26 20:34:51,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:34:51,671 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:51,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1956536241, now seen corresponding path program 1 times [2020-10-26 20:34:51,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:51,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773803045] [2020-10-26 20:34:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-26 20:34:53,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1666 [2020-10-26 20:34:53,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:53,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:34:53,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:34:53,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:53,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:53,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:53,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:34:53,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:53,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:53,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:34:53,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:53,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 20:34:53,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:34:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:53,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:53,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:53,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:34:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:53,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:53,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:53,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:34:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:53,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:53,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:53,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:53,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:53,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:53,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:53,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:53,820 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 20:34:53,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773803045] [2020-10-26 20:34:53,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:53,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:53,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891867347] [2020-10-26 20:34:53,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:53,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:53,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:53,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:53,822 INFO L87 Difference]: Start difference. First operand 2174 states and 2460 transitions. Second operand 7 states. [2020-10-26 20:34:55,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:55,467 INFO L93 Difference]: Finished difference Result 4437 states and 5048 transitions. [2020-10-26 20:34:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:55,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-10-26 20:34:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:55,478 INFO L225 Difference]: With dead ends: 4437 [2020-10-26 20:34:55,478 INFO L226 Difference]: Without dead ends: 2329 [2020-10-26 20:34:55,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:34:55,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2020-10-26 20:34:55,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2317. [2020-10-26 20:34:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2317 states. [2020-10-26 20:34:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2604 transitions. [2020-10-26 20:34:55,547 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2604 transitions. Word has length 240 [2020-10-26 20:34:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:55,547 INFO L481 AbstractCegarLoop]: Abstraction has 2317 states and 2604 transitions. [2020-10-26 20:34:55,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2604 transitions. [2020-10-26 20:34:55,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-26 20:34:55,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:55,555 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:55,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:34:55,556 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:55,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:55,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2131465160, now seen corresponding path program 1 times [2020-10-26 20:34:55,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:55,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949517364] [2020-10-26 20:34:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:55,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:55,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:58,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3243 [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-26 20:34:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:58,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:58,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:58,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:58,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:58,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:58,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:58,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:59,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:59,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:59,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:59,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-26 20:34:59,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:34:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 20:34:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:59,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:59,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-26 20:34:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:59,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:59,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 20:34:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:59,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:59,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,294 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 173 proven. 78 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 20:34:59,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949517364] [2020-10-26 20:34:59,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:59,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:59,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268175600] [2020-10-26 20:34:59,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:59,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:59,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:59,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:59,296 INFO L87 Difference]: Start difference. First operand 2317 states and 2604 transitions. Second operand 7 states. [2020-10-26 20:35:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:00,821 INFO L93 Difference]: Finished difference Result 4985 states and 5630 transitions. [2020-10-26 20:35:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:35:00,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-10-26 20:35:00,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:00,834 INFO L225 Difference]: With dead ends: 4985 [2020-10-26 20:35:00,834 INFO L226 Difference]: Without dead ends: 2734 [2020-10-26 20:35:00,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:35:00,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2020-10-26 20:35:00,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2593. [2020-10-26 20:35:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2593 states. [2020-10-26 20:35:00,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 2926 transitions. [2020-10-26 20:35:00,903 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 2926 transitions. Word has length 257 [2020-10-26 20:35:00,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:00,904 INFO L481 AbstractCegarLoop]: Abstraction has 2593 states and 2926 transitions. [2020-10-26 20:35:00,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 2926 transitions. [2020-10-26 20:35:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-26 20:35:00,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:00,913 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, 1, 1, 1, 1, 1] [2020-10-26 20:35:00,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:35:00,913 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:00,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:00,914 INFO L82 PathProgramCache]: Analyzing trace with hash 107648027, now seen corresponding path program 1 times [2020-10-26 20:35:00,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:00,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181709514] [2020-10-26 20:35:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:01,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:01,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-26 20:35:01,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-10-26 20:35:01,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:35:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 20:35:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:01,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:01,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:01,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:01,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:01,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:01,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:01,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:35:01,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:01,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:01,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:01,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:01,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:01,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:01,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:01,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:01,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:01,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:01,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:01,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:01,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:01,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:01,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:01,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:35:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:01,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:01,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:01,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:01,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:01,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:35:01,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:01,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:01,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:01,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:35:01,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 209 proven. 7 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:35:02,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181709514] [2020-10-26 20:35:02,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:02,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:35:02,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832824148] [2020-10-26 20:35:02,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:35:02,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:02,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:35:02,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:02,121 INFO L87 Difference]: Start difference. First operand 2593 states and 2926 transitions. Second operand 6 states. [2020-10-26 20:35:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:03,347 INFO L93 Difference]: Finished difference Result 5257 states and 5930 transitions. [2020-10-26 20:35:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:35:03,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 262 [2020-10-26 20:35:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:03,358 INFO L225 Difference]: With dead ends: 5257 [2020-10-26 20:35:03,358 INFO L226 Difference]: Without dead ends: 2454 [2020-10-26 20:35:03,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:03,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2020-10-26 20:35:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 2452. [2020-10-26 20:35:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2452 states. [2020-10-26 20:35:03,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 2755 transitions. [2020-10-26 20:35:03,423 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 2755 transitions. Word has length 262 [2020-10-26 20:35:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:03,424 INFO L481 AbstractCegarLoop]: Abstraction has 2452 states and 2755 transitions. [2020-10-26 20:35:03,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:35:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 2755 transitions. [2020-10-26 20:35:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-26 20:35:03,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:03,433 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, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-26 20:35:03,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:35:03,433 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:03,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:03,434 INFO L82 PathProgramCache]: Analyzing trace with hash -321953618, now seen corresponding path program 1 times [2020-10-26 20:35:03,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:03,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403551389] [2020-10-26 20:35:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-26 20:35:04,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 952 [2020-10-26 20:35:04,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:35:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:35:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:04,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:04,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:04,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:04,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:04,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:04,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:04,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:35:04,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:35:04,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 20:35:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,851 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 20:35:04,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403551389] [2020-10-26 20:35:04,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:04,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:04,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666453346] [2020-10-26 20:35:04,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:04,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:04,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:04,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:04,853 INFO L87 Difference]: Start difference. First operand 2452 states and 2755 transitions. Second operand 7 states. [2020-10-26 20:35:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:06,438 INFO L93 Difference]: Finished difference Result 4846 states and 5453 transitions. [2020-10-26 20:35:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:06,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 267 [2020-10-26 20:35:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:06,448 INFO L225 Difference]: With dead ends: 4846 [2020-10-26 20:35:06,448 INFO L226 Difference]: Without dead ends: 2460 [2020-10-26 20:35:06,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2020-10-26 20:35:06,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2452. [2020-10-26 20:35:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2452 states. [2020-10-26 20:35:06,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 2745 transitions. [2020-10-26 20:35:06,510 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 2745 transitions. Word has length 267 [2020-10-26 20:35:06,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:06,510 INFO L481 AbstractCegarLoop]: Abstraction has 2452 states and 2745 transitions. [2020-10-26 20:35:06,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 2745 transitions. [2020-10-26 20:35:06,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-26 20:35:06,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:06,519 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, 1, 1, 1, 1, 1] [2020-10-26 20:35:06,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:35:06,519 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:06,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:06,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1811420698, now seen corresponding path program 1 times [2020-10-26 20:35:06,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:06,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710578297] [2020-10-26 20:35:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-26 20:35:08,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:08,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1839 [2020-10-26 20:35:08,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:35:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-26 20:35:08,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:08,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:08,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:08,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:08,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:08,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:08,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:08,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:08,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:35:08,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:08,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:35:08,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 236 proven. 7 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:35:08,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710578297] [2020-10-26 20:35:08,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:08,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:35:08,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810657485] [2020-10-26 20:35:08,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:35:08,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:08,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:35:08,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:08,809 INFO L87 Difference]: Start difference. First operand 2452 states and 2745 transitions. Second operand 6 states. [2020-10-26 20:35:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:10,031 INFO L93 Difference]: Finished difference Result 5287 states and 6021 transitions. [2020-10-26 20:35:10,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:35:10,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 271 [2020-10-26 20:35:10,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:10,044 INFO L225 Difference]: With dead ends: 5287 [2020-10-26 20:35:10,044 INFO L226 Difference]: Without dead ends: 2347 [2020-10-26 20:35:10,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2020-10-26 20:35:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 2172. [2020-10-26 20:35:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2172 states. [2020-10-26 20:35:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 2397 transitions. [2020-10-26 20:35:10,109 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 2397 transitions. Word has length 271 [2020-10-26 20:35:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:10,110 INFO L481 AbstractCegarLoop]: Abstraction has 2172 states and 2397 transitions. [2020-10-26 20:35:10,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:35:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 2397 transitions. [2020-10-26 20:35:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-26 20:35:10,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:10,116 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:10,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:35:10,116 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:10,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:10,117 INFO L82 PathProgramCache]: Analyzing trace with hash 472371389, now seen corresponding path program 1 times [2020-10-26 20:35:10,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:10,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664577876] [2020-10-26 20:35:10,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-26 20:35:10,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:10,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-10-26 20:35:10,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:35:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 20:35:10,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:10,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:35:10,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:10,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:10,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:10,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:10,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:10,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:10,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:10,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:10,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:10,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:10,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:10,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:10,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:10,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:10,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:10,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:10,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:10,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:11,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:11,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:11,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:11,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:11,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:11,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:11,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:11,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:11,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:11,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:11,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:11,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:11,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:11,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:11,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:11,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:11,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:35:11,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:11,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:35:11,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:11,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:11,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:35:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:11,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:11,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:11,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:35:11,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:11,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:35:11,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:11,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:11,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:35:11,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-26 20:35:11,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664577876] [2020-10-26 20:35:11,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:11,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:11,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968085644] [2020-10-26 20:35:11,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:35:11,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:11,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:35:11,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:35:11,236 INFO L87 Difference]: Start difference. First operand 2172 states and 2397 transitions. Second operand 5 states. [2020-10-26 20:35:12,027 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:35:12,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:12,284 INFO L93 Difference]: Finished difference Result 4354 states and 4804 transitions. [2020-10-26 20:35:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:35:12,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-10-26 20:35:12,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:12,292 INFO L225 Difference]: With dead ends: 4354 [2020-10-26 20:35:12,292 INFO L226 Difference]: Without dead ends: 2172 [2020-10-26 20:35:12,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 20:35:12,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2020-10-26 20:35:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2170. [2020-10-26 20:35:12,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2020-10-26 20:35:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2390 transitions. [2020-10-26 20:35:12,344 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2390 transitions. Word has length 296 [2020-10-26 20:35:12,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:12,344 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 2390 transitions. [2020-10-26 20:35:12,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:35:12,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2390 transitions. [2020-10-26 20:35:12,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-26 20:35:12,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:12,351 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:12,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 20:35:12,352 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:12,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:12,352 INFO L82 PathProgramCache]: Analyzing trace with hash -737074859, now seen corresponding path program 1 times [2020-10-26 20:35:12,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:12,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431302644] [2020-10-26 20:35:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:12,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:13,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-26 20:35:13,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1295 [2020-10-26 20:35:13,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-26 20:35:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-26 20:35:13,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:13,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:13,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:13,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:13,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:13,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:13,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:13,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:13,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:13,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:13,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:13,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:13,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:13,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:13,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:13,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:13,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:13,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:13,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:13,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:13,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:13,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:13,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:13,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:13,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:13,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:35:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 20:35:14,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-26 20:35:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:35:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:35:14,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:35:14,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:35:14,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-26 20:35:14,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431302644] [2020-10-26 20:35:14,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:14,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:14,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664066368] [2020-10-26 20:35:14,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:14,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:14,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:14,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:14,182 INFO L87 Difference]: Start difference. First operand 2170 states and 2390 transitions. Second operand 7 states. [2020-10-26 20:35:14,627 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:15,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:15,777 INFO L93 Difference]: Finished difference Result 4412 states and 4880 transitions. [2020-10-26 20:35:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:35:15,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 316 [2020-10-26 20:35:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:15,781 INFO L225 Difference]: With dead ends: 4412 [2020-10-26 20:35:15,781 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:35:15,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:35:15,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:35:15,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:35:15,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:35:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:35:15,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 316 [2020-10-26 20:35:15,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:15,792 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:35:15,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:35:15,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:35:15,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 20:35:15,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:35:16,500 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 206 [2020-10-26 20:35:16,655 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 197 [2020-10-26 20:35:16,929 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 40 [2020-10-26 20:35:18,451 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 206 DAG size of output: 66 [2020-10-26 20:35:19,033 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 60 [2020-10-26 20:35:19,664 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 60 [2020-10-26 20:35:19,948 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 43 [2020-10-26 20:35:19,953 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:35:19,953 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:35:19,953 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:35:19,954 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:35:19,954 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:35:19,954 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 20:35:19,955 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:35:19,955 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:35:19,956 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:35:19,957 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,958 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:35:19,959 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,960 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:35:19,961 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:35:19,962 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:35:19,963 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:35:19,963 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:35:19,965 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:35:19,965 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:35:19,965 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:35:19,965 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:35:19,965 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:35:19,966 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,967 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:35:19,968 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,969 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,970 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,971 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse14 (= ~a7~0 0)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a21~0 1)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse15 (= ~a8~0 |old(~a8~0)|))) (let ((.cse9 (and .cse1 .cse2 .cse13 .cse3 .cse4 .cse15)) (.cse7 (not (<= |old(~a17~0)| 0))) (.cse0 (not (= |old(~a8~0)| 13))) (.cse5 (= ~a8~0 13)) (.cse6 (not (= |old(~a7~0)| 1))) (.cse10 (not (= |old(~a17~0)| 1))) (.cse11 (and .cse2 .cse13 .cse3 .cse4 .cse15 .cse14)) (.cse16 (= 5 ~a16~0)) (.cse17 (not (= 5 |old(~a16~0)|))) (.cse8 (not (= |old(~a21~0)| 1))) (.cse12 (not (= |old(~a7~0)| 0)))) (and (or .cse0 (and .cse1 .cse2 (= ~a21~0 |old(~a21~0)|) .cse3 .cse4 .cse5) .cse6) (or .cse6 (not (<= |old(~a16~0)| 4)) .cse7 .cse8 .cse9) (or .cse10 .cse6 (not (= |old(~a20~0)| 1)) .cse9 .cse8) (or .cse11 (not (<= 6 |old(~a16~0)|)) .cse8 .cse12) (or .cse11 .cse7 .cse8 .cse12) (or .cse0 (and .cse2 .cse13 .cse3 .cse4 .cse5 .cse14) .cse8 .cse12) (or (and .cse1 .cse2 .cse13 .cse3 .cse15 .cse16) .cse6 .cse17 .cse8) (or .cse10 .cse11 .cse8 .cse12) (or (and .cse2 .cse13 .cse3 .cse15 .cse16 .cse14) .cse17 .cse8 .cse12)))) [2020-10-26 20:35:19,971 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,971 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,971 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,971 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:35:19,971 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:35:19,971 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L270 CegarLoopResult]: At program point L457(line 457) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a17~0)| 0))) (.cse4 (not (= |old(~a17~0)| 1))) (.cse0 (not (= |old(~a7~0)| 1))) (.cse6 (not (= |old(~a8~0)| 13))) (.cse5 (not (= 5 |old(~a16~0)|))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse3 (not (= |old(~a7~0)| 0)))) (and (or .cse0 (not (<= |old(~a16~0)| 4)) .cse1 .cse2) (or .cse1 .cse2 .cse3) (or (not (<= 6 |old(~a16~0)|)) .cse2 .cse3) (or .cse4 .cse2 .cse3) (or .cse4 .cse0 (not (= |old(~a20~0)| 1)) .cse2) (or .cse0 .cse5 .cse2) (or .cse6 .cse0) (or .cse6 .cse2 .cse3) (or .cse5 .cse2 .cse3))) [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L457-1(line 457) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:35:19,972 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:35:19,973 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,974 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:35:19,975 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:35:19,976 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:35:19,976 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 20:35:19,976 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:35:19,977 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:35:19,977 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 (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:35:19,977 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:35:19,977 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1)) (.cse3 (= ~a8~0 13)) (.cse7 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse2 (<= ~a16~0 5)) (.cse6 (<= ~a17~0 0)) (.cse4 (or (<= 2 |old(~a7~0)|) (<= |old(~a7~0)| 0))) (.cse5 (= ~a7~0 0))) (or (and .cse0 .cse1 (= 5 ~a16~0)) (and .cse1 .cse2 .cse3 .cse4 .cse5) (not (= |old(~a20~0)| 1)) (and .cse1 .cse4 (<= 5 ~a16~0) .cse5) (not (= |old(~a21~0)| 1)) (and .cse0 .cse1 (<= ~a16~0 4) .cse6) (and .cse1 .cse0 (= ~a20~0 1) .cse7) (not (= |old(~a17~0)| 1)) (and .cse0 .cse3) (and .cse1 .cse4 .cse5 .cse7) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse1 .cse2 .cse6 .cse4 .cse5) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:35:19,977 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:35:19,977 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:35:19,978 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1)) (.cse3 (= ~a8~0 13)) (.cse7 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse2 (<= ~a16~0 5)) (.cse6 (<= ~a17~0 0)) (.cse4 (or (<= 2 |old(~a7~0)|) (<= |old(~a7~0)| 0))) (.cse5 (= ~a7~0 0))) (or (and .cse0 .cse1 (= 5 ~a16~0)) (and .cse1 .cse2 .cse3 .cse4 .cse5) (not (= |old(~a20~0)| 1)) (and .cse1 .cse4 (<= 5 ~a16~0) .cse5) (not (= |old(~a21~0)| 1)) (and .cse0 .cse1 (<= ~a16~0 4) .cse6) (and .cse1 .cse0 (= ~a20~0 1) .cse7) (not (= |old(~a17~0)| 1)) (and .cse0 .cse3) (and .cse1 .cse4 .cse5 .cse7) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse1 .cse2 .cse6 .cse4 .cse5) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:35:19,978 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:35:20,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:35:20 BoogieIcfgContainer [2020-10-26 20:35:20,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:35:20,007 INFO L168 Benchmark]: Toolchain (without parser) took 92881.93 ms. Allocated memory was 152.0 MB in the beginning and 994.1 MB in the end (delta: 842.0 MB). Free memory was 125.3 MB in the beginning and 475.8 MB in the end (delta: -350.5 MB). Peak memory consumption was 592.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:20,007 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 152.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:35:20,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.15 ms. Allocated memory is still 152.0 MB. Free memory was 124.7 MB in the beginning and 97.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:20,008 INFO L168 Benchmark]: Boogie Preprocessor took 142.48 ms. Allocated memory is still 152.0 MB. Free memory was 97.9 MB in the beginning and 130.1 MB in the end (delta: -32.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:20,011 INFO L168 Benchmark]: RCFGBuilder took 1499.42 ms. Allocated memory was 152.0 MB in the beginning and 201.3 MB in the end (delta: 49.3 MB). Free memory was 130.1 MB in the beginning and 158.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 85.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:20,012 INFO L168 Benchmark]: TraceAbstraction took 90573.21 ms. Allocated memory was 201.3 MB in the beginning and 994.1 MB in the end (delta: 792.7 MB). Free memory was 157.8 MB in the beginning and 475.8 MB in the end (delta: -318.0 MB). Peak memory consumption was 574.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:20,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 152.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 651.15 ms. Allocated memory is still 152.0 MB. Free memory was 124.7 MB in the beginning and 97.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 142.48 ms. Allocated memory is still 152.0 MB. Free memory was 97.9 MB in the beginning and 130.1 MB in the end (delta: -32.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1499.42 ms. Allocated memory was 152.0 MB in the beginning and 201.3 MB in the end (delta: 49.3 MB). Free memory was 130.1 MB in the beginning and 158.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 85.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 90573.21 ms. Allocated memory was 201.3 MB in the beginning and 994.1 MB in the end (delta: 792.7 MB). Free memory was 157.8 MB in the beginning and 475.8 MB in the end (delta: -318.0 MB). Peak memory consumption was 574.9 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: (((((((((((((((a7 == 1 && a21 == 1) && 5 == a16) || ((((a21 == 1 && a16 <= 5) && a8 == 13) && (2 <= \old(a7) || \old(a7) <= 0)) && a7 == 0)) || !(\old(a20) == 1)) || (((a21 == 1 && (2 <= \old(a7) || \old(a7) <= 0)) && 5 <= a16) && a7 == 0)) || !(\old(a21) == 1)) || (((a7 == 1 && a21 == 1) && a16 <= 4) && a17 <= 0)) || (((a21 == 1 && a7 == 1) && a20 == 1) && a17 == 1)) || !(\old(a17) == 1)) || (a7 == 1 && a8 == 13)) || (((a21 == 1 && (2 <= \old(a7) || \old(a7) <= 0)) && a7 == 0) && a17 == 1)) || !(5 == \old(a16))) || !(15 == \old(a8))) || ((((a21 == 1 && a16 <= 5) && a17 <= 0) && (2 <= \old(a7) || \old(a7) <= 0)) && a7 == 0)) || !(\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: 86.2s, OverallIterations: 18, TraceHistogramMax: 7, AutomataDifference: 31.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 448 SDtfs, 6809 SDslu, 610 SDs, 0 SdLazy, 13712 SolverSat, 1711 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 199 SyntacticMatches, 7 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2593occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 18 MinimizatonAttempts, 571 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 448 PreInvPairs, 498 NumberOfFragments, 867 HoareAnnotationTreeSize, 448 FomulaSimplifications, 5180 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 8847 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 51.3s InterpolantComputationTime, 3382 NumberOfCodeBlocks, 3382 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3364 ConstructedInterpolants, 0 QuantifiedInterpolants, 2879725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 3074/3331 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...