/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=DEEPEST --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/Problem02_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:36:47,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:36:47,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:36:47,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:36:47,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:36:47,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:36:47,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:36:47,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:36:47,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:36:47,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:36:47,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:36:47,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:36:47,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:36:47,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:36:47,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:36:47,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:36:47,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:36:47,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:36:47,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:36:47,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:36:47,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:36:47,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:36:47,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:36:47,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:36:47,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:36:47,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:36:47,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:36:47,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:36:47,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:36:47,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:36:47,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:36:47,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:36:47,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:36:47,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:36:47,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:36:47,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:36:47,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:36:47,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:36:47,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:36:47,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:36:47,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:36:47,446 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 [2020-10-27 15:36:47,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:36:47,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:36:47,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:36:47,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:36:47,482 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:36:47,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:36:47,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:36:47,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:36:47,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:36:47,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:36:47,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:36:47,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:36:47,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:36:47,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:36:47,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:36:47,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:36:47,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:36:47,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:36:47,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:36:47,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:36:47,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:36:47,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:36:47,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:36:47,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:36:47,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:36:47,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:36:47,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:36:47,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:36:47,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:36:47,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:36:47,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:36:47,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:36:47,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:36:47,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:36:47,982 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:36:47,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-10-27 15:36:48,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63aadf7e6/005eab64f5fe45f987130cc438cf6c71/FLAGbbbc9f6eb [2020-10-27 15:36:48,937 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:36:48,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-10-27 15:36:48,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63aadf7e6/005eab64f5fe45f987130cc438cf6c71/FLAGbbbc9f6eb [2020-10-27 15:36:49,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63aadf7e6/005eab64f5fe45f987130cc438cf6c71 [2020-10-27 15:36:49,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:36:49,128 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:36:49,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:36:49,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:36:49,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:36:49,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:49,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7932636a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49, skipping insertion in model container [2020-10-27 15:36:49,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:49,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:36:49,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:36:49,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:36:49,668 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:36:49,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:36:49,901 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:36:49,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49 WrapperNode [2020-10-27 15:36:49,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:36:49,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:36:49,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:36:49,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:36:49,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:49,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:49,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:49,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:50,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:50,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:50,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (1/1) ... [2020-10-27 15:36:50,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:36:50,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:36:50,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:36:50,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:36:50,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (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 [2020-10-27 15:36:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:36:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:36:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:36:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:36:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:36:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:36:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:36:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:36:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:36:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:36:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:36:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:36:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:36:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:36:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:36:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:36:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:36:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:36:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:36:51,729 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:36:51,730 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:36:51,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:51 BoogieIcfgContainer [2020-10-27 15:36:51,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:36:51,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:36:51,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:36:51,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:36:51,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:36:49" (1/3) ... [2020-10-27 15:36:51,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be77123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:51, skipping insertion in model container [2020-10-27 15:36:51,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:49" (2/3) ... [2020-10-27 15:36:51,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be77123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:51, skipping insertion in model container [2020-10-27 15:36:51,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:51" (3/3) ... [2020-10-27 15:36:51,743 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label21.c [2020-10-27 15:36:51,755 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:36:51,761 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:36:51,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:36:51,808 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:36:51,808 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:36:51,808 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:36:51,809 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:36:51,809 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:36:51,809 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:36:51,809 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:36:51,809 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:36:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-27 15:36:51,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 15:36:51,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:36:51,848 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] [2020-10-27 15:36:51,852 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:36:51,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:36:51,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2002010637, now seen corresponding path program 1 times [2020-10-27 15:36:51,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:36:51,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982135588] [2020-10-27 15:36:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:36:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:52,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:52,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:53,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:53,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 15:36:53,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:36:53,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1520 [2020-10-27 15:36:53,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:36:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:36:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-27 15:36:53,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:36:53,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:36:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:53,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:53,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:53,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:36:53,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:53,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 15:36:53,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:36:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:36:53,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:36:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:36:54,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982135588] [2020-10-27 15:36:54,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:36:54,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:36:54,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876089446] [2020-10-27 15:36:54,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:36:54,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:36:54,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:36:54,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:36:54,067 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 5 states. [2020-10-27 15:36:54,243 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 15:36:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:36:56,524 INFO L93 Difference]: Finished difference Result 676 states and 1131 transitions. [2020-10-27 15:36:56,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:36:56,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-27 15:36:56,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:36:56,546 INFO L225 Difference]: With dead ends: 676 [2020-10-27 15:36:56,546 INFO L226 Difference]: Without dead ends: 342 [2020-10-27 15:36:56,555 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 [2020-10-27 15:36:56,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-27 15:36:56,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 333. [2020-10-27 15:36:56,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-10-27 15:36:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 481 transitions. [2020-10-27 15:36:56,693 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 481 transitions. Word has length 103 [2020-10-27 15:36:56,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:36:56,694 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 481 transitions. [2020-10-27 15:36:56,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:36:56,695 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 481 transitions. [2020-10-27 15:36:56,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 15:36:56,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:36:56,700 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:36:56,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:36:56,700 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:36:56,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:36:56,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1382237529, now seen corresponding path program 1 times [2020-10-27 15:36:56,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:36:56,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590681183] [2020-10-27 15:36:56,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:36:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:56,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:57,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:58,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:58,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:58,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 15:36:58,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:36:58,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1552 [2020-10-27 15:36:58,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:58,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:36:58,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:36:58,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 15:36:58,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:58,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:36:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:58,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:58,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:58,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:36:58,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:58,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:36:58,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:36:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:36:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:36:58,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:36:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:58,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:58,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:58,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:36:58,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:58,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:36:58,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:58,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:36:58,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:58,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:36:58,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:36:58,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590681183] [2020-10-27 15:36:58,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:36:58,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:36:58,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228699228] [2020-10-27 15:36:58,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:36:58,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:36:58,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:36:58,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:36:58,709 INFO L87 Difference]: Start difference. First operand 333 states and 481 transitions. Second operand 5 states. [2020-10-27 15:36:58,967 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 15:37:00,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:00,418 INFO L93 Difference]: Finished difference Result 753 states and 1133 transitions. [2020-10-27 15:37:00,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:00,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-27 15:37:00,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:00,429 INFO L225 Difference]: With dead ends: 753 [2020-10-27 15:37:00,429 INFO L226 Difference]: Without dead ends: 339 [2020-10-27 15:37:00,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-27 15:37:00,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 333. [2020-10-27 15:37:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-10-27 15:37:00,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 477 transitions. [2020-10-27 15:37:00,457 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 477 transitions. Word has length 111 [2020-10-27 15:37:00,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:00,458 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 477 transitions. [2020-10-27 15:37:00,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:00,458 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 477 transitions. [2020-10-27 15:37:00,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-27 15:37:00,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:00,461 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] [2020-10-27 15:37:00,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:37:00,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:00,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:00,462 INFO L82 PathProgramCache]: Analyzing trace with hash -576624131, now seen corresponding path program 1 times [2020-10-27 15:37:00,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:00,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253458227] [2020-10-27 15:37:00,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:00,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:00,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:02,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:02,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:03,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:03,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 15:37:03,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:37:03,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3219 [2020-10-27 15:37:03,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 15:37:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 15:37:03,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:03,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:03,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:03,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:03,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:37:03,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:03,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:03,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:03,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 15:37:03,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:03,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:37:03,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 15:37:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:37:03,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253458227] [2020-10-27 15:37:03,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:03,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:37:03,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252786763] [2020-10-27 15:37:03,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:37:03,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:03,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:37:03,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:03,958 INFO L87 Difference]: Start difference. First operand 333 states and 477 transitions. Second operand 6 states. [2020-10-27 15:37:06,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:06,345 INFO L93 Difference]: Finished difference Result 1105 states and 1635 transitions. [2020-10-27 15:37:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:37:06,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2020-10-27 15:37:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:06,353 INFO L225 Difference]: With dead ends: 1105 [2020-10-27 15:37:06,354 INFO L226 Difference]: Without dead ends: 778 [2020-10-27 15:37:06,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:37:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-10-27 15:37:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 626. [2020-10-27 15:37:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2020-10-27 15:37:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 868 transitions. [2020-10-27 15:37:06,403 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 868 transitions. Word has length 113 [2020-10-27 15:37:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:06,406 INFO L481 AbstractCegarLoop]: Abstraction has 626 states and 868 transitions. [2020-10-27 15:37:06,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:37:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 868 transitions. [2020-10-27 15:37:06,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 15:37:06,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:06,414 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 15:37:06,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:37:06,417 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:06,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:06,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2070968506, now seen corresponding path program 1 times [2020-10-27 15:37:06,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:06,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408949830] [2020-10-27 15:37:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:06,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:06,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:07,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:07,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 15:37:07,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:37:07,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-10-27 15:37:07,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:07,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:07,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 15:37:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 15:37:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:07,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:07,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:07,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:07,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:07,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:37:07,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:07,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:07,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:07,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:07,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:37:07,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:07,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 15:37:07,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:37:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:37:07,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408949830] [2020-10-27 15:37:07,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:07,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:37:07,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117895957] [2020-10-27 15:37:07,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:37:07,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:07,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:37:07,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:07,704 INFO L87 Difference]: Start difference. First operand 626 states and 868 transitions. Second operand 6 states. [2020-10-27 15:37:08,010 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 15:37:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:09,369 INFO L93 Difference]: Finished difference Result 1349 states and 1922 transitions. [2020-10-27 15:37:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:09,369 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2020-10-27 15:37:09,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:09,374 INFO L225 Difference]: With dead ends: 1349 [2020-10-27 15:37:09,374 INFO L226 Difference]: Without dead ends: 632 [2020-10-27 15:37:09,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:37:09,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-10-27 15:37:09,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 626. [2020-10-27 15:37:09,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2020-10-27 15:37:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 864 transitions. [2020-10-27 15:37:09,406 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 864 transitions. Word has length 118 [2020-10-27 15:37:09,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:09,406 INFO L481 AbstractCegarLoop]: Abstraction has 626 states and 864 transitions. [2020-10-27 15:37:09,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:37:09,406 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 864 transitions. [2020-10-27 15:37:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-27 15:37:09,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:09,409 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:37:09,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:37:09,409 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:09,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:09,410 INFO L82 PathProgramCache]: Analyzing trace with hash -154619996, now seen corresponding path program 1 times [2020-10-27 15:37:09,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:09,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420004659] [2020-10-27 15:37:09,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:09,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:09,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:10,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:10,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:10,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-27 15:37:10,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:37:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1063 [2020-10-27 15:37:10,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 15:37:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 15:37:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:10,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:10,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:10,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:10,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:10,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:10,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:37:10,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:10,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:10,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:10,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:10,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:10,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 15:37:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 15:37:10,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 15:37:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:37:10,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420004659] [2020-10-27 15:37:10,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:10,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:37:10,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122520754] [2020-10-27 15:37:10,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:37:10,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:10,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:37:10,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:37:10,741 INFO L87 Difference]: Start difference. First operand 626 states and 864 transitions. Second operand 5 states. [2020-10-27 15:37:12,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:12,505 INFO L93 Difference]: Finished difference Result 1691 states and 2424 transitions. [2020-10-27 15:37:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:12,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-27 15:37:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:12,513 INFO L225 Difference]: With dead ends: 1691 [2020-10-27 15:37:12,513 INFO L226 Difference]: Without dead ends: 1071 [2020-10-27 15:37:12,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2020-10-27 15:37:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 775. [2020-10-27 15:37:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 775 states. [2020-10-27 15:37:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1037 transitions. [2020-10-27 15:37:12,571 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1037 transitions. Word has length 129 [2020-10-27 15:37:12,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:12,573 INFO L481 AbstractCegarLoop]: Abstraction has 775 states and 1037 transitions. [2020-10-27 15:37:12,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1037 transitions. [2020-10-27 15:37:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-27 15:37:12,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:12,581 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:37:12,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:37:12,582 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:12,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1145934004, now seen corresponding path program 1 times [2020-10-27 15:37:12,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:12,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343310922] [2020-10-27 15:37:12,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:12,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:13,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:13,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:14,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:15,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:15,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 15:37:15,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:37:15,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3125 [2020-10-27 15:37:15,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 15:37:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 15:37:15,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:15,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:15,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:15,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:15,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:15,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:37:15,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:15,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:15,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:15,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:15,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 15:37:15,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:15,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:37:15,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:15,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 15:37:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:16,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:16,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 15:37:16,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 15:37:16,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 15:37:16,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 15:37:16,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343310922] [2020-10-27 15:37:16,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:16,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:37:16,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889436934] [2020-10-27 15:37:16,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:37:16,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:16,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:37:16,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:37:16,140 INFO L87 Difference]: Start difference. First operand 775 states and 1037 transitions. Second operand 5 states. [2020-10-27 15:37:16,301 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 15:37:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:17,787 INFO L93 Difference]: Finished difference Result 1996 states and 2741 transitions. [2020-10-27 15:37:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:17,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-27 15:37:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:17,797 INFO L225 Difference]: With dead ends: 1996 [2020-10-27 15:37:17,798 INFO L226 Difference]: Without dead ends: 1227 [2020-10-27 15:37:17,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-10-27 15:37:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1212. [2020-10-27 15:37:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1212 states. [2020-10-27 15:37:17,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1633 transitions. [2020-10-27 15:37:17,870 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1633 transitions. Word has length 155 [2020-10-27 15:37:17,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:17,871 INFO L481 AbstractCegarLoop]: Abstraction has 1212 states and 1633 transitions. [2020-10-27 15:37:17,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1633 transitions. [2020-10-27 15:37:17,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-27 15:37:17,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:17,878 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:37:17,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:37:17,879 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:17,881 INFO L82 PathProgramCache]: Analyzing trace with hash 723652464, now seen corresponding path program 1 times [2020-10-27 15:37:17,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:17,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174977393] [2020-10-27 15:37:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:17,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:17,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:18,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:18,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:19,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:19,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-27 15:37:19,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:37:19,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-10-27 15:37:19,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-27 15:37:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 15:37:19,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:19,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:19,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:19,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:19,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:19,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:19,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:37:19,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:19,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:19,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:19,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:19,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:19,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:19,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 15:37:19,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:37:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-27 15:37:19,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 15:37:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:37:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:37:19,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174977393] [2020-10-27 15:37:19,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:19,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:37:19,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408185213] [2020-10-27 15:37:19,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:37:19,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:19,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:37:19,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:19,512 INFO L87 Difference]: Start difference. First operand 1212 states and 1633 transitions. Second operand 6 states. [2020-10-27 15:37:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:22,437 INFO L93 Difference]: Finished difference Result 4473 states and 6174 transitions. [2020-10-27 15:37:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:37:22,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-10-27 15:37:22,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:22,438 INFO L225 Difference]: With dead ends: 4473 [2020-10-27 15:37:22,438 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:37:22,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-27 15:37:22,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:37:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:37:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:37:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:37:22,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-10-27 15:37:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:22,451 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:37:22,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:37:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:37:22,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:37:22,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:37:22,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:37:23,189 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 30 [2020-10-27 15:37:23,311 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 30 [2020-10-27 15:37:23,434 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 25 [2020-10-27 15:37:24,154 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 52 [2020-10-27 15:37:24,384 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 31 [2020-10-27 15:37:24,572 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 15:37:24,572 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 15:37:24,573 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 15:37:24,573 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 15:37:24,573 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:37:24,574 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~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)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-27 15:37:24,574 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:37:24,574 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-27 15:37:24,575 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-27 15:37:24,575 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-27 15:37:24,575 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-27 15:37:24,575 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-27 15:37:24,575 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-27 15:37:24,575 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,576 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-27 15:37:24,577 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,578 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-27 15:37:24,579 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-27 15:37:24,580 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-27 15:37:24,581 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,582 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-27 15:37:24,583 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-27 15:37:24,584 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,585 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,586 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-27 15:37:24,587 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-27 15:37:24,588 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-27 15:37:24,589 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,589 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,589 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,589 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,589 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,591 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-27 15:37:24,592 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,593 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-27 15:37:24,594 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-27 15:37:24,594 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-27 15:37:24,594 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-27 15:37:24,594 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-27 15:37:24,594 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-27 15:37:24,594 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-27 15:37:24,594 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse5 (= ~a28~0 |old(~a28~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|))) (let ((.cse1 (not (= |old(~a19~0)| 1))) (.cse4 (= ~a19~0 1)) (.cse0 (and .cse5 .cse2 .cse3 .cse6 (= ~a19~0 |old(~a19~0)|)))) (and (or .cse0 (not (= |old(~a11~0)| 1))) (or .cse0 (= 7 |old(~a17~0)|)) (or (not (= |old(~a25~0)| 1)) .cse1 (not (= 11 |old(~a28~0)|)) (and .cse2 .cse3 .cse4 (= ~a25~0 1) (= ~a28~0 11)) (not (= ~a21~0 1)) (not (<= |old(~a11~0)| 0))) (or .cse1 (and (not (< 1 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0))) (and .cse5 .cse2 .cse3 .cse4 .cse6)) (or .cse0 (not (= 0 |old(~a25~0)|)))))) [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,595 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-27 15:37:24,596 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-27 15:37:24,597 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-27 15:37:24,598 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-27 15:37:24,599 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-27 15:37:24,599 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-27 15:37:24,599 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-27 15:37:24,599 INFO L270 CegarLoopResult]: At program point L462(line 462) the Hoare annotation is: (let ((.cse0 (not (= |old(~a19~0)| 1)))) (and (or .cse0 (not (= 11 |old(~a28~0)|)) (not (= ~a21~0 1)) (not (<= |old(~a11~0)| 0))) (or .cse0 (and (not (< 1 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)))) (= 7 |old(~a17~0)|) (not (= 0 |old(~a25~0)|)) (not (= |old(~a11~0)| 1)))) [2020-10-27 15:37:24,599 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-27 15:37:24,599 INFO L274 CegarLoopResult]: For program point L462-1(line 462) no Hoare annotation was computed. [2020-10-27 15:37:24,599 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-27 15:37:24,599 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,600 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:37:24,601 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (not (= 7 ~a17~0))) [2020-10-27 15:37:24,601 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:37:24,601 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:37:24,602 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1))) (or (not (= |old(~a19~0)| 1)) (= ~a25~0 0) (not (= 7 ~a17~0)) (= 7 |old(~a17~0)|) (not (= 0 |old(~a25~0)|)) (= ~a11~0 1) (and (<= ~a11~0 0) .cse0 (= ~a21~0 1) (= ~a28~0 11)) (and .cse0 (or (< 1 ~a25~0) (<= ~a25~0 0))))) [2020-10-27 15:37:24,602 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (= 7 |old(~a17~0)|) (not (= 0 |old(~a25~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|))) [2020-10-27 15:37:24,602 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-27 15:37:24,602 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-27 15:37:24,602 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1))) (or (not (= |old(~a19~0)| 1)) (= ~a25~0 0) (not (= 7 ~a17~0)) (= 7 |old(~a17~0)|) (not (= 0 |old(~a25~0)|)) (= ~a11~0 1) (and (<= ~a11~0 0) .cse0 (= ~a21~0 1) (= ~a28~0 11)) (and .cse0 (or (< 1 ~a25~0) (<= ~a25~0 0))))) [2020-10-27 15:37:24,602 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-27 15:37:24,603 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-27 15:37:24,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:37:24 BoogieIcfgContainer [2020-10-27 15:37:24,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:37:24,630 INFO L168 Benchmark]: Toolchain (without parser) took 35504.44 ms. Allocated memory was 151.0 MB in the beginning and 570.4 MB in the end (delta: 419.4 MB). Free memory was 132.4 MB in the beginning and 410.8 MB in the end (delta: -278.4 MB). Peak memory consumption was 347.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:24,632 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 123.2 MB in the end (delta: 80.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:37:24,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.00 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 123.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:24,637 INFO L168 Benchmark]: Boogie Preprocessor took 146.85 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 118.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:24,638 INFO L168 Benchmark]: RCFGBuilder took 1681.91 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 118.3 MB in the beginning and 155.8 MB in the end (delta: -37.6 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:24,642 INFO L168 Benchmark]: TraceAbstraction took 32891.27 ms. Allocated memory was 183.5 MB in the beginning and 570.4 MB in the end (delta: 386.9 MB). Free memory was 155.3 MB in the beginning and 410.8 MB in the end (delta: -255.5 MB). Peak memory consumption was 338.0 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:24,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 123.2 MB in the end (delta: 80.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 769.00 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 123.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.85 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 118.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1681.91 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 118.3 MB in the beginning and 155.8 MB in the end (delta: -37.6 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 32891.27 ms. Allocated memory was 183.5 MB in the beginning and 570.4 MB in the end (delta: 386.9 MB). Free memory was 155.3 MB in the beginning and 410.8 MB in the end (delta: -255.5 MB). Peak memory consumption was 338.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((((!(\old(a19) == 1) || a25 == 0) || !(7 == a17)) || 7 == \old(a17)) || !(0 == \old(a25))) || a11 == 1) || (((a11 <= 0 && a19 == 1) && a21 == 1) && a28 == 11)) || (a19 == 1 && (1 < a25 || a25 <= 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.6s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 271 SDtfs, 2999 SDslu, 283 SDs, 0 SdLazy, 5716 SolverSat, 963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1212occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 484 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 117 PreInvPairs, 169 NumberOfFragments, 388 HoareAnnotationTreeSize, 117 FomulaSimplifications, 109494 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3392 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 890 NumberOfCodeBlocks, 890 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 883 ConstructedInterpolants, 0 QuantifiedInterpolants, 787222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 149/156 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...