/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_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:36:34,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:36:34,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:36:34,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:36:34,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:36:34,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:36:34,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:36:34,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:36:34,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:36:34,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:36:34,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:36:34,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:36:34,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:36:34,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:36:34,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:36:34,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:36:34,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:36:34,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:36:34,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:36:34,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:36:34,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:36:34,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:36:34,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:36:34,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:36:34,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:36:34,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:36:34,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:36:34,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:36:34,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:36:34,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:36:34,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:36:34,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:36:34,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:36:34,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:36:34,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:36:34,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:36:34,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:36:34,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:36:34,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:36:34,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:36:34,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:36:34,531 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 20:36:34,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:36:34,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:36:34,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:36:34,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:36:34,562 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:36:34,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:36:34,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:36:34,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:36:34,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:36:34,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:36:34,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:36:34,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:36:34,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:36:34,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:36:34,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:36:34,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:36:34,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:36:34,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:36:34,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:36:34,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:36:34,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:36:34,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:36:34,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:36:34,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:36:34,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:36:34,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:36:34,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:36:34,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:36:34,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:36:34,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:36:34,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:36:34,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:36:34,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:36:34,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:36:34,976 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:36:34,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-10-26 20:36:35,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af1ef770d/790513290e3d4ce6913b90dfb2c48ca6/FLAG61879b7b4 [2020-10-26 20:36:35,822 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:36:35,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-10-26 20:36:35,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af1ef770d/790513290e3d4ce6913b90dfb2c48ca6/FLAG61879b7b4 [2020-10-26 20:36:36,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af1ef770d/790513290e3d4ce6913b90dfb2c48ca6 [2020-10-26 20:36:36,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:36:36,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:36:36,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:36,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:36:36,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:36:36,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:36,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b18556e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36, skipping insertion in model container [2020-10-26 20:36:36,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:36,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:36:36,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:36:36,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:36,699 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:36:36,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:36,964 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:36:36,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36 WrapperNode [2020-10-26 20:36:36,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:36,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:36:36,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:36:36,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:36:36,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:36,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:37,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:37,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:37,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:37,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:37,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (1/1) ... [2020-10-26 20:36:37,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:36:37,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:36:37,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:36:37,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:36:37,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (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 20:36:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:36:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:36:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:36:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:36:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:36:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:36:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:36:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:36:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:36:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:36:37,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:36:37,251 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:36:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:36:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:36:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:36:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:36:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:36:37,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:36:37,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:36:38,896 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:36:38,896 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:36:38,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:38 BoogieIcfgContainer [2020-10-26 20:36:38,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:36:38,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:36:38,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:36:38,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:36:38,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:36:36" (1/3) ... [2020-10-26 20:36:38,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbd24a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:38, skipping insertion in model container [2020-10-26 20:36:38,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:36" (2/3) ... [2020-10-26 20:36:38,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbd24a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:38, skipping insertion in model container [2020-10-26 20:36:38,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:38" (3/3) ... [2020-10-26 20:36:38,908 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label54.c [2020-10-26 20:36:38,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:36:38,926 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:36:38,947 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:36:38,977 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:36:38,978 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:36:38,978 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:36:38,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:36:38,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:36:38,978 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:36:38,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:36:38,979 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:36:39,002 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:36:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-26 20:36:39,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:39,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:39,019 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:39,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:39,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1845655003, now seen corresponding path program 1 times [2020-10-26 20:36:39,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:39,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310512155] [2020-10-26 20:36:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:39,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:41,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:41,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 20:36:41,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1896 [2020-10-26 20:36:41,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-26 20:36:41,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:36:41,592 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:41,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:41,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:41,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:41,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:41,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:41,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:41,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:41,714 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 20:36:41,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310512155] [2020-10-26 20:36:41,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:41,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:36:41,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542980314] [2020-10-26 20:36:41,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:36:41,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:41,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:36:41,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:41,751 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-26 20:36:41,945 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:44,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:44,067 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:36:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:36:44,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-26 20:36:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:44,086 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:36:44,086 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:36:44,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:44,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:36:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:36:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:36:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-26 20:36:44,174 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 129 [2020-10-26 20:36:44,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:44,175 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-26 20:36:44,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:36:44,175 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-26 20:36:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-26 20:36:44,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:44,180 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:44,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:36:44,181 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:44,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:44,182 INFO L82 PathProgramCache]: Analyzing trace with hash 510427937, now seen corresponding path program 1 times [2020-10-26 20:36:44,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:44,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93658309] [2020-10-26 20:36:44,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:44,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:44,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-26 20:36:45,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1338 [2020-10-26 20:36:45,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:45,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,736 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:45,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:45,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:45,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:36:45,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:45,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-26 20:36:45,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:36:45,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:36:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:36:45,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93658309] [2020-10-26 20:36:45,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:45,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:36:45,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466404624] [2020-10-26 20:36:45,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:45,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:45,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:45,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:45,942 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 7 states. [2020-10-26 20:36:46,121 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:47,275 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:36:47,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:47,947 INFO L93 Difference]: Finished difference Result 846 states and 1219 transitions. [2020-10-26 20:36:47,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:36:47,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-10-26 20:36:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:47,954 INFO L225 Difference]: With dead ends: 846 [2020-10-26 20:36:47,955 INFO L226 Difference]: Without dead ends: 571 [2020-10-26 20:36:47,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-10-26 20:36:48,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 565. [2020-10-26 20:36:48,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-10-26 20:36:48,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 761 transitions. [2020-10-26 20:36:48,037 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 761 transitions. Word has length 139 [2020-10-26 20:36:48,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:48,038 INFO L481 AbstractCegarLoop]: Abstraction has 565 states and 761 transitions. [2020-10-26 20:36:48,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:48,038 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 761 transitions. [2020-10-26 20:36:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-26 20:36:48,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:48,046 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:48,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:36:48,046 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:48,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:48,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1793588323, now seen corresponding path program 1 times [2020-10-26 20:36:48,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:48,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48646163] [2020-10-26 20:36:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:48,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-26 20:36:53,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:53,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-26 20:36:53,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:36:53,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:53,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:53,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:36:53,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:53,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:53,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:36:53,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:36:53,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:53,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 20:36:53,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:36:53,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:36:53,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48646163] [2020-10-26 20:36:53,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:53,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:36:53,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253487842] [2020-10-26 20:36:53,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:53,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:53,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:53,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:53,568 INFO L87 Difference]: Start difference. First operand 565 states and 761 transitions. Second operand 7 states. [2020-10-26 20:36:53,715 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:36:55,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:55,610 INFO L93 Difference]: Finished difference Result 1432 states and 2009 transitions. [2020-10-26 20:36:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:36:55,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-26 20:36:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:55,624 INFO L225 Difference]: With dead ends: 1432 [2020-10-26 20:36:55,624 INFO L226 Difference]: Without dead ends: 873 [2020-10-26 20:36:55,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2020-10-26 20:36:55,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 708. [2020-10-26 20:36:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2020-10-26 20:36:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 962 transitions. [2020-10-26 20:36:55,724 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 962 transitions. Word has length 171 [2020-10-26 20:36:55,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:55,726 INFO L481 AbstractCegarLoop]: Abstraction has 708 states and 962 transitions. [2020-10-26 20:36:55,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 962 transitions. [2020-10-26 20:36:55,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-26 20:36:55,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:55,746 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:55,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:36:55,747 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:55,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:55,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1396656229, now seen corresponding path program 1 times [2020-10-26 20:36:55,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:55,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162328695] [2020-10-26 20:36:55,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:55,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:00,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-26 20:37:00,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-26 20:37:00,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:37:00,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:01,044 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:37:01,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:01,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:01,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:01,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:01,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:37:01,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:01,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:01,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:01,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:01,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:01,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:37:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:01,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:01,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-26 20:37:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:01,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:01,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:01,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:37:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:37:01,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:37:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:37:01,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162328695] [2020-10-26 20:37:01,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:01,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:01,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704629060] [2020-10-26 20:37:01,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:01,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:01,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:01,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:01,279 INFO L87 Difference]: Start difference. First operand 708 states and 962 transitions. Second operand 7 states. [2020-10-26 20:37:01,417 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:37:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:03,328 INFO L93 Difference]: Finished difference Result 1718 states and 2366 transitions. [2020-10-26 20:37:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:37:03,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-26 20:37:03,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:03,337 INFO L225 Difference]: With dead ends: 1718 [2020-10-26 20:37:03,337 INFO L226 Difference]: Without dead ends: 1016 [2020-10-26 20:37:03,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2020-10-26 20:37:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 994. [2020-10-26 20:37:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 994 states. [2020-10-26 20:37:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1307 transitions. [2020-10-26 20:37:03,388 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1307 transitions. Word has length 175 [2020-10-26 20:37:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:03,389 INFO L481 AbstractCegarLoop]: Abstraction has 994 states and 1307 transitions. [2020-10-26 20:37:03,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:03,389 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1307 transitions. [2020-10-26 20:37:03,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-26 20:37:03,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:03,394 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:03,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:37:03,394 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:03,395 INFO L82 PathProgramCache]: Analyzing trace with hash -453078530, now seen corresponding path program 1 times [2020-10-26 20:37:03,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:03,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500433655] [2020-10-26 20:37:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:05,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-26 20:37:08,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:08,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 20:37:08,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:08,579 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:37:08,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:08,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:08,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:08,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:37:08,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:08,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:08,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:37:08,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:08,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:37:08,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:08,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:37:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:08,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:08,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:08,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:37:08,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:08,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:08,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:08,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:37:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:08,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:37:08,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:37:08,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:37:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 53 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:37:08,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500433655] [2020-10-26 20:37:08,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:08,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:08,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435203149] [2020-10-26 20:37:08,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:08,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:08,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:08,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:08,870 INFO L87 Difference]: Start difference. First operand 994 states and 1307 transitions. Second operand 7 states. [2020-10-26 20:37:09,043 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:37:10,409 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:37:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:10,882 INFO L93 Difference]: Finished difference Result 2286 states and 3073 transitions. [2020-10-26 20:37:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:10,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-10-26 20:37:10,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:10,893 INFO L225 Difference]: With dead ends: 2286 [2020-10-26 20:37:10,893 INFO L226 Difference]: Without dead ends: 1298 [2020-10-26 20:37:10,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2020-10-26 20:37:10,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1276. [2020-10-26 20:37:10,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1276 states. [2020-10-26 20:37:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1654 transitions. [2020-10-26 20:37:10,970 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1654 transitions. Word has length 186 [2020-10-26 20:37:10,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:10,970 INFO L481 AbstractCegarLoop]: Abstraction has 1276 states and 1654 transitions. [2020-10-26 20:37:10,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1654 transitions. [2020-10-26 20:37:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-26 20:37:10,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:10,977 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:10,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:37:10,977 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:10,978 INFO L82 PathProgramCache]: Analyzing trace with hash 416861582, now seen corresponding path program 1 times [2020-10-26 20:37:10,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:10,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055938910] [2020-10-26 20:37:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:11,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:16,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-26 20:37:16,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:16,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-26 20:37:16,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:37:16,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:16,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:16,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:16,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:16,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:37:16,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:16,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:16,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:16,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:16,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:37:16,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:16,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:37:16,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:16,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:37:16,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:16,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:37:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:16,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:16,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:16,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:16,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:16,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:37:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:16,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:16,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:37:16,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:16,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:37:16,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:37:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 56 proven. 24 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-26 20:37:16,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055938910] [2020-10-26 20:37:16,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:16,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:16,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460307007] [2020-10-26 20:37:16,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:16,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:16,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:16,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:16,419 INFO L87 Difference]: Start difference. First operand 1276 states and 1654 transitions. Second operand 7 states. [2020-10-26 20:37:18,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:18,309 INFO L93 Difference]: Finished difference Result 2713 states and 3564 transitions. [2020-10-26 20:37:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:18,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-10-26 20:37:18,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:18,320 INFO L225 Difference]: With dead ends: 2713 [2020-10-26 20:37:18,321 INFO L226 Difference]: Without dead ends: 1443 [2020-10-26 20:37:18,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:18,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2020-10-26 20:37:18,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1427. [2020-10-26 20:37:18,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1427 states. [2020-10-26 20:37:18,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1838 transitions. [2020-10-26 20:37:18,386 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1838 transitions. Word has length 194 [2020-10-26 20:37:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:18,386 INFO L481 AbstractCegarLoop]: Abstraction has 1427 states and 1838 transitions. [2020-10-26 20:37:18,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1838 transitions. [2020-10-26 20:37:18,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-26 20:37:18,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:18,416 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:18,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:37:18,416 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:18,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1061330088, now seen corresponding path program 1 times [2020-10-26 20:37:18,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:18,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424697793] [2020-10-26 20:37:18,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:18,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:18,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:20,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-26 20:37:21,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:21,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3102 [2020-10-26 20:37:21,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:21,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:37:21,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:37:21,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:21,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:21,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:21,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:21,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:21,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:21,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:21,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:37:21,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:21,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:21,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:37:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:37:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:21,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:21,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:21,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:21,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:37:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:21,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:21,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:37:21,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:21,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,052 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 85 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-26 20:37:22,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424697793] [2020-10-26 20:37:22,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:22,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 20:37:22,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153988933] [2020-10-26 20:37:22,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 20:37:22,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:22,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 20:37:22,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:37:22,056 INFO L87 Difference]: Start difference. First operand 1427 states and 1838 transitions. Second operand 10 states. [2020-10-26 20:37:24,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:24,674 INFO L93 Difference]: Finished difference Result 3738 states and 5049 transitions. [2020-10-26 20:37:24,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 20:37:24,676 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-10-26 20:37:24,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:24,695 INFO L225 Difference]: With dead ends: 3738 [2020-10-26 20:37:24,695 INFO L226 Difference]: Without dead ends: 2317 [2020-10-26 20:37:24,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-10-26 20:37:24,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-10-26 20:37:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2261. [2020-10-26 20:37:24,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-10-26 20:37:24,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2909 transitions. [2020-10-26 20:37:24,810 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2909 transitions. Word has length 208 [2020-10-26 20:37:24,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:24,811 INFO L481 AbstractCegarLoop]: Abstraction has 2261 states and 2909 transitions. [2020-10-26 20:37:24,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 20:37:24,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2909 transitions. [2020-10-26 20:37:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-26 20:37:24,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:24,820 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:24,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:37:24,820 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:24,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:24,821 INFO L82 PathProgramCache]: Analyzing trace with hash -397565052, now seen corresponding path program 1 times [2020-10-26 20:37:24,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:24,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185047460] [2020-10-26 20:37:24,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:24,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:28,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4069 [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:37:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:29,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:29,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:29,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:29,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:29,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:29,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:29,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:29,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:29,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:29,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:29,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:29,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:29,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:29,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:29,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:29,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:29,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:37:29,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:29,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:29,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:37:29,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:37:29,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:37:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:29,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:37:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:29,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:29,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:29,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:37:29,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:29,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:29,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:37:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:29,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:37:29,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 86 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:37:29,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185047460] [2020-10-26 20:37:29,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:29,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:29,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299627757] [2020-10-26 20:37:29,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:29,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:29,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:29,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:29,353 INFO L87 Difference]: Start difference. First operand 2261 states and 2909 transitions. Second operand 8 states. [2020-10-26 20:37:30,852 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:37:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:32,151 INFO L93 Difference]: Finished difference Result 5631 states and 7413 transitions. [2020-10-26 20:37:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:37:32,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 214 [2020-10-26 20:37:32,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:32,168 INFO L225 Difference]: With dead ends: 5631 [2020-10-26 20:37:32,169 INFO L226 Difference]: Without dead ends: 3376 [2020-10-26 20:37:32,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:37:32,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2020-10-26 20:37:32,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3222. [2020-10-26 20:37:32,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3222 states. [2020-10-26 20:37:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 4008 transitions. [2020-10-26 20:37:32,301 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 4008 transitions. Word has length 214 [2020-10-26 20:37:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:32,303 INFO L481 AbstractCegarLoop]: Abstraction has 3222 states and 4008 transitions. [2020-10-26 20:37:32,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 4008 transitions. [2020-10-26 20:37:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-26 20:37:32,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:32,313 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:32,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:37:32,314 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:32,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:32,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1802952014, now seen corresponding path program 1 times [2020-10-26 20:37:32,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:32,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274342119] [2020-10-26 20:37:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:32,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-26 20:37:35,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2954 [2020-10-26 20:37:35,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:37:35,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:35,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:37:35,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:35,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:37:35,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:35,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-26 20:37:35,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:37:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:37:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:35,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,850 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 95 proven. 48 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-26 20:37:35,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274342119] [2020-10-26 20:37:35,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:35,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:35,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210475882] [2020-10-26 20:37:35,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:35,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:35,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:35,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:35,853 INFO L87 Difference]: Start difference. First operand 3222 states and 4008 transitions. Second operand 7 states. [2020-10-26 20:37:36,004 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:37:36,768 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:37,807 INFO L93 Difference]: Finished difference Result 6466 states and 8078 transitions. [2020-10-26 20:37:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:37,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-26 20:37:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:37,827 INFO L225 Difference]: With dead ends: 6466 [2020-10-26 20:37:37,827 INFO L226 Difference]: Without dead ends: 3250 [2020-10-26 20:37:37,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:37,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-10-26 20:37:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3230. [2020-10-26 20:37:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3230 states. [2020-10-26 20:37:37,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3230 states to 3230 states and 4008 transitions. [2020-10-26 20:37:37,952 INFO L78 Accepts]: Start accepts. Automaton has 3230 states and 4008 transitions. Word has length 228 [2020-10-26 20:37:37,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:37,953 INFO L481 AbstractCegarLoop]: Abstraction has 3230 states and 4008 transitions. [2020-10-26 20:37:37,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:37,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3230 states and 4008 transitions. [2020-10-26 20:37:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-26 20:37:37,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:37,963 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:37,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:37:37,964 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:37,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1364827463, now seen corresponding path program 1 times [2020-10-26 20:37:37,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:37,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906095189] [2020-10-26 20:37:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:38,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:39,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:39,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-26 20:37:39,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:39,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 990 [2020-10-26 20:37:39,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-26 20:37:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-26 20:37:39,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:39,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:39,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:39,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:39,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:37:39,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:39,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:39,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:39,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:39,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:37:39,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:39,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:39,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:39,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-26 20:37:39,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:39,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:37:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:39,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:39,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 20:37:39,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:39,442 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 106 proven. 56 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:37:39,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906095189] [2020-10-26 20:37:39,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:39,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:39,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344751440] [2020-10-26 20:37:39,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:37:39,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:39,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:37:39,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:39,444 INFO L87 Difference]: Start difference. First operand 3230 states and 4008 transitions. Second operand 6 states. [2020-10-26 20:37:41,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:41,144 INFO L93 Difference]: Finished difference Result 6885 states and 8564 transitions. [2020-10-26 20:37:41,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:41,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 245 [2020-10-26 20:37:41,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:41,165 INFO L225 Difference]: With dead ends: 6885 [2020-10-26 20:37:41,165 INFO L226 Difference]: Without dead ends: 3661 [2020-10-26 20:37:41,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 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 20:37:41,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2020-10-26 20:37:41,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 2682. [2020-10-26 20:37:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2682 states. [2020-10-26 20:37:41,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3166 transitions. [2020-10-26 20:37:41,270 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3166 transitions. Word has length 245 [2020-10-26 20:37:41,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:41,271 INFO L481 AbstractCegarLoop]: Abstraction has 2682 states and 3166 transitions. [2020-10-26 20:37:41,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:37:41,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3166 transitions. [2020-10-26 20:37:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-26 20:37:41,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:41,281 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:41,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:37:41,282 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:41,283 INFO L82 PathProgramCache]: Analyzing trace with hash 248074322, now seen corresponding path program 1 times [2020-10-26 20:37:41,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:41,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471495757] [2020-10-26 20:37:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:43,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-26 20:37:46,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4987 [2020-10-26 20:37:46,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:37:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:37:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:46,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:46,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:46,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:37:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:37:46,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:37:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:46,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 20:37:46,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:37:46,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:37:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:46,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:46,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:37:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:37:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:46,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:37:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:37:46,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:37:46,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:37:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:46,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 204 proven. 70 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-26 20:37:46,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471495757] [2020-10-26 20:37:46,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:46,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:46,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010969251] [2020-10-26 20:37:46,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:46,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:46,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:46,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:46,756 INFO L87 Difference]: Start difference. First operand 2682 states and 3166 transitions. Second operand 8 states. [2020-10-26 20:37:46,888 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:37:47,396 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:49,496 INFO L93 Difference]: Finished difference Result 6321 states and 7479 transitions. [2020-10-26 20:37:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:49,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 298 [2020-10-26 20:37:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:49,515 INFO L225 Difference]: With dead ends: 6321 [2020-10-26 20:37:49,515 INFO L226 Difference]: Without dead ends: 3645 [2020-10-26 20:37:49,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3645 states. [2020-10-26 20:37:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 2960. [2020-10-26 20:37:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2960 states. [2020-10-26 20:37:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 3480 transitions. [2020-10-26 20:37:49,621 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 3480 transitions. Word has length 298 [2020-10-26 20:37:49,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:49,621 INFO L481 AbstractCegarLoop]: Abstraction has 2960 states and 3480 transitions. [2020-10-26 20:37:49,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 3480 transitions. [2020-10-26 20:37:49,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-26 20:37:49,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:49,634 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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] [2020-10-26 20:37:49,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:37:49,634 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:49,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:49,635 INFO L82 PathProgramCache]: Analyzing trace with hash 302755102, now seen corresponding path program 1 times [2020-10-26 20:37:49,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:49,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733711583] [2020-10-26 20:37:49,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:49,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:49,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:49,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2890 [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:37:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-26 20:37:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:52,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:52,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:52,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:52,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:52,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:52,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:52,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:37:52,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:37:52,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:52,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:37:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:52,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:52,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:52,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:52,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:52,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:37:52,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:52,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:52,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:37:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:52,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:52,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:52,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:52,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:52,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:52,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:37:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:52,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:52,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:52,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:52,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:52,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:52,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:52,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:37:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:52,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:52,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:53,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:53,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:37:53,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:53,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-26 20:37:53,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:37:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 254 proven. 49 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:37:53,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733711583] [2020-10-26 20:37:53,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:53,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:53,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655065582] [2020-10-26 20:37:53,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:37:53,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:53,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:37:53,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:53,232 INFO L87 Difference]: Start difference. First operand 2960 states and 3480 transitions. Second operand 6 states. [2020-10-26 20:37:53,465 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:54,994 INFO L93 Difference]: Finished difference Result 5989 states and 7221 transitions. [2020-10-26 20:37:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:54,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 320 [2020-10-26 20:37:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:54,997 INFO L225 Difference]: With dead ends: 5989 [2020-10-26 20:37:54,997 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:37:55,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:55,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:37:55,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:37:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:37:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:37:55,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 320 [2020-10-26 20:37:55,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:55,012 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:37:55,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:37:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:37:55,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:37:55,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:37:55,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:37:57,019 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 171 [2020-10-26 20:37:57,545 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 171 [2020-10-26 20:37:57,801 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 38 [2020-10-26 20:37:58,794 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 68 [2020-10-26 20:37:59,727 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 50 [2020-10-26 20:38:00,756 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 50 [2020-10-26 20:38:01,079 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 44 [2020-10-26 20:38:01,085 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:38:01,085 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:38:01,085 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:38:01,086 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:38:01,086 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:38:01,086 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 20:38:01,086 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:38:01,086 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,086 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,088 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,088 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,088 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,088 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,089 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:38:01,089 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:38:01,089 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:38:01,089 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:38:01,089 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:38:01,089 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:38:01,089 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:38:01,090 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:38:01,090 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:38:01,090 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:38:01,090 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,091 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,092 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,093 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,093 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,093 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,093 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:38:01,093 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:38:01,093 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:38:01,094 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:38:01,095 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:38:01,095 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:38:01,095 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:38:01,095 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:38:01,096 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:38:01,097 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:38:01,098 INFO L270 CegarLoopResult]: At program point L544(line 544) the Hoare annotation is: (let ((.cse1 (not (= 15 |old(~a8~0)|))) (.cse0 (not (= |old(~a17~0)| 1))) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or .cse0 (not (<= |old(~a16~0)| 5)) .cse1 .cse2 (= |old(~a7~0)| 1)) (or (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a21~0)|)) (not (<= |old(~a17~0)| 0))) (not (<= |old(~a8~0)| 13)) (or .cse0 (not (<= 6 |old(~a16~0)|)) .cse1 .cse2 (not (<= |old(~a20~0)| 0))) (or .cse0 (not (= |old(~a20~0)| 1)) .cse2 (not (= |old(~a7~0)| 0))))) [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L544-1(line 544) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,099 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:38:01,100 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:38:01,101 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:38:01,102 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse9 (= ~a21~0 1)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|))) (let ((.cse6 (and .cse0 .cse1 .cse9 .cse2 .cse3 (= ~a8~0 15))) (.cse7 (not (= 15 |old(~a8~0)|))) (.cse5 (not (= |old(~a17~0)| 1))) (.cse8 (not (= |old(~a21~0)| 1))) (.cse4 (= ~a8~0 |old(~a8~0)|))) (and (or (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= ~a21~0 1) (<= 1 ~a21~0)) (not (<= |old(~a17~0)| 0))) (or .cse5 (not (<= |old(~a16~0)| 5)) .cse6 .cse7 .cse8 (= |old(~a7~0)| 1)) (or .cse5 .cse6 (not (<= 6 |old(~a16~0)|)) .cse7 .cse8 (not (<= |old(~a20~0)| 0))) (or .cse5 (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 .cse9 .cse2 .cse3 .cse4) .cse8 (not (= |old(~a7~0)| 0))) (or (not (<= |old(~a8~0)| 13)) (and .cse0 .cse1 (= ~a21~0 |old(~a21~0)|) .cse2 .cse3 .cse4))))) [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,103 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,104 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,105 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:38:01,106 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:38:01,107 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:38:01,107 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a8~0 15) (= ~a20~0 1) (not (= ~a16~0 4)) (<= ~a21~0 1) (<= 1 ~a21~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:38:01,107 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:38:01,107 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:38:01,107 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (= 4 |old(~a16~0)|) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15) (= ~a7~0 0)) (not (= |old(~a20~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:38:01,107 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:38:01,107 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse2 (= ~a8~0 15)) (.cse0 (<= ~a21~0 1)) (.cse1 (<= 1 ~a21~0)) (.cse3 (= ~a17~0 1))) (or (and (<= ~a17~0 0) .cse0 .cse1) (and (<= ~a16~0 5) .cse2 .cse0 .cse1 (not (= ~a7~0 1)) .cse3) (and (<= 6 ~a16~0) .cse2 .cse0 .cse1 .cse3 (<= ~a20~0 0)) (not (= |old(~a17~0)| 1)) (= 4 |old(~a16~0)|) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (and (= ~a20~0 1) .cse0 .cse1 (= ~a7~0 0) .cse3) (<= ~a8~0 13))) [2020-10-26 20:38:01,108 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:38:01,108 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:38:01,108 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse2 (= ~a8~0 15)) (.cse0 (<= ~a21~0 1)) (.cse1 (<= 1 ~a21~0)) (.cse3 (= ~a17~0 1))) (or (and (<= ~a17~0 0) .cse0 .cse1) (and (<= ~a16~0 5) .cse2 .cse0 .cse1 (not (= ~a7~0 1)) .cse3) (and (<= 6 ~a16~0) .cse2 .cse0 .cse1 .cse3 (<= ~a20~0 0)) (not (= |old(~a17~0)| 1)) (= 4 |old(~a16~0)|) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (and (= ~a20~0 1) .cse0 .cse1 (= ~a7~0 0) .cse3) (<= ~a8~0 13))) [2020-10-26 20:38:01,108 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:38:01,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:38:01 BoogieIcfgContainer [2020-10-26 20:38:01,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:38:01,133 INFO L168 Benchmark]: Toolchain (without parser) took 85101.45 ms. Allocated memory was 155.2 MB in the beginning and 952.1 MB in the end (delta: 796.9 MB). Free memory was 128.6 MB in the beginning and 515.0 MB in the end (delta: -386.4 MB). Peak memory consumption was 578.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:01,133 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:38:01,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 930.20 ms. Allocated memory is still 155.2 MB. Free memory was 128.1 MB in the beginning and 133.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:01,134 INFO L168 Benchmark]: Boogie Preprocessor took 180.00 ms. Allocated memory is still 155.2 MB. Free memory was 133.0 MB in the beginning and 128.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:01,135 INFO L168 Benchmark]: RCFGBuilder took 1747.23 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 104.5 MB in the end (delta: 24.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:01,136 INFO L168 Benchmark]: TraceAbstraction took 82230.70 ms. Allocated memory was 155.2 MB in the beginning and 952.1 MB in the end (delta: 796.9 MB). Free memory was 104.0 MB in the beginning and 515.0 MB in the end (delta: -411.1 MB). Peak memory consumption was 553.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:01,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 930.20 ms. Allocated memory is still 155.2 MB. Free memory was 128.1 MB in the beginning and 133.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 180.00 ms. Allocated memory is still 155.2 MB. Free memory was 133.0 MB in the beginning and 128.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1747.23 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 104.5 MB in the end (delta: 24.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 82230.70 ms. Allocated memory was 155.2 MB in the beginning and 952.1 MB in the end (delta: 796.9 MB). Free memory was 104.0 MB in the beginning and 515.0 MB in the end (delta: -411.1 MB). Peak memory consumption was 553.1 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: ((((((((((((a17 <= 0 && a21 <= 1) && 1 <= a21) || (((((a16 <= 5 && a8 == 15) && a21 <= 1) && 1 <= a21) && !(a7 == 1)) && a17 == 1)) || (((((6 <= a16 && a8 == 15) && a21 <= 1) && 1 <= a21) && a17 == 1) && a20 <= 0)) || !(\old(a17) == 1)) || 4 == \old(a16)) || !(\old(a16) <= 5)) || !(\old(a20) == 1)) || !(\old(a21) == 1)) || !(15 == \old(a8))) || !(\old(a7) == 0)) || ((((a20 == 1 && a21 <= 1) && 1 <= a21) && a7 == 0) && a17 == 1)) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 76.0s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 337 SDtfs, 4884 SDslu, 544 SDs, 0 SdLazy, 10619 SolverSat, 1734 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3230occurred in iteration=9, 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, 12 MinimizatonAttempts, 2131 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 378 PreInvPairs, 458 NumberOfFragments, 606 HoareAnnotationTreeSize, 378 FomulaSimplifications, 4337004 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 169570 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 47.1s InterpolantComputationTime, 2507 NumberOfCodeBlocks, 2507 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2495 ConstructedInterpolants, 0 QuantifiedInterpolants, 1527760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 1376/1715 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...