/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:38:09,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:38:09,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:38:09,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:38:09,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:38:09,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:38:09,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:38:09,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:38:09,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:38:09,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:38:09,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:38:09,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:38:09,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:38:09,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:38:09,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:38:09,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:38:09,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:38:09,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:38:09,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:38:09,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:38:09,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:38:09,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:38:09,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:38:09,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:38:09,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:38:09,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:38:09,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:38:09,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:38:09,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:38:09,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:38:09,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:38:09,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:38:09,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:38:09,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:38:09,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:38:09,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:38:09,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:38:09,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:38:09,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:38:09,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:38:09,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:38:09,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:38:09,655 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:38:09,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:38:09,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:38:09,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:38:09,658 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:38:09,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:38:09,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:38:09,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:38:09,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:38:09,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:38:09,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:38:09,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:38:09,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:38:09,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:38:09,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:38:09,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:38:09,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:38:09,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:38:09,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:38:09,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:38:09,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:38:09,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:38:09,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:38:09,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:38:09,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:38:09,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:38:09,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:38:09,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:38:09,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:38:09,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:38:10,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:38:10,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:38:10,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:38:10,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:38:10,080 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:38:10,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label15.c [2020-10-26 20:38:10,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39ea8375b/2dffcefce3e34d5abe0a9796cd5f9bb7/FLAG636856dec [2020-10-26 20:38:10,877 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:38:10,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label15.c [2020-10-26 20:38:10,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39ea8375b/2dffcefce3e34d5abe0a9796cd5f9bb7/FLAG636856dec [2020-10-26 20:38:11,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39ea8375b/2dffcefce3e34d5abe0a9796cd5f9bb7 [2020-10-26 20:38:11,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:38:11,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:38:11,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:38:11,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:38:11,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:38:11,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:11,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115247e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11, skipping insertion in model container [2020-10-26 20:38:11,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:11,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:38:11,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:38:11,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:38:11,697 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:38:11,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:38:11,812 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:38:11,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11 WrapperNode [2020-10-26 20:38:11,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:38:11,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:38:11,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:38:11,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:38:11,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:11,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:11,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:11,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:12,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:12,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:12,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... [2020-10-26 20:38:12,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:38:12,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:38:12,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:38:12,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:38:12,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:38:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:38:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:38:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:38:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:38:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:38:12,181 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:38:12,181 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:38:12,181 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:38:12,181 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:38:12,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:38:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:38:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:38:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:38:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:38:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:38:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:38:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:38:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:38:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:38:13,451 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:38:13,452 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:38:13,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:38:13 BoogieIcfgContainer [2020-10-26 20:38:13,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:38:13,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:38:13,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:38:13,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:38:13,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:38:11" (1/3) ... [2020-10-26 20:38:13,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69816554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:38:13, skipping insertion in model container [2020-10-26 20:38:13,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:11" (2/3) ... [2020-10-26 20:38:13,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69816554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:38:13, skipping insertion in model container [2020-10-26 20:38:13,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:38:13" (3/3) ... [2020-10-26 20:38:13,465 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label15.c [2020-10-26 20:38:13,478 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:38:13,485 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:38:13,499 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:38:13,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:38:13,531 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:38:13,531 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:38:13,532 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:38:13,532 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:38:13,532 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:38:13,532 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:38:13,532 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:38:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:38:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-26 20:38:13,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:13,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:13,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:13,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:13,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1058073707, now seen corresponding path program 1 times [2020-10-26 20:38:13,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:13,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807659848] [2020-10-26 20:38:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:13,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:14,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:16,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:16,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-26 20:38:16,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:16,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2341 [2020-10-26 20:38:16,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 20:38:16,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:16,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:38:16,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:38:17,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:17,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:17,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:17,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:17,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:38:17,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:17,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:17,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:17,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:38:17,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807659848] [2020-10-26 20:38:17,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:38:17,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 20:38:17,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507332266] [2020-10-26 20:38:17,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 20:38:17,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:17,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 20:38:17,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:17,524 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-26 20:38:17,764 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:38:17,965 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-26 20:38:18,149 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-26 20:38:18,329 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:38:18,756 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-10-26 20:38:19,194 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-26 20:38:20,111 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2020-10-26 20:38:20,797 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-26 20:38:22,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:22,098 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-26 20:38:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:38:22,102 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 137 [2020-10-26 20:38:22,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:22,129 INFO L225 Difference]: With dead ends: 541 [2020-10-26 20:38:22,130 INFO L226 Difference]: Without dead ends: 237 [2020-10-26 20:38:22,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-26 20:38:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-26 20:38:22,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-26 20:38:22,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-26 20:38:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-26 20:38:22,254 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 137 [2020-10-26 20:38:22,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:22,255 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-26 20:38:22,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 20:38:22,256 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-26 20:38:22,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 20:38:22,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:22,272 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:22,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:38:22,273 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:22,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:22,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1972593066, now seen corresponding path program 1 times [2020-10-26 20:38:22,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:22,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989854577] [2020-10-26 20:38:22,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:22,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:22,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:23,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-26 20:38:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1781 [2020-10-26 20:38:24,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-26 20:38:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:38:24,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:24,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:24,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:24,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:24,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:38:24,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:24,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-26 20:38:24,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:24,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:24,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:24,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:24,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:24,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:38:24,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:38:24,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:24,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:38:24,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989854577] [2020-10-26 20:38:24,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:24,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:38:24,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725642560] [2020-10-26 20:38:24,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:38:24,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:24,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:38:24,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:38:24,529 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 6 states. [2020-10-26 20:38:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:26,124 INFO L93 Difference]: Finished difference Result 632 states and 905 transitions. [2020-10-26 20:38:26,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:38:26,125 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-10-26 20:38:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:26,131 INFO L225 Difference]: With dead ends: 632 [2020-10-26 20:38:26,131 INFO L226 Difference]: Without dead ends: 404 [2020-10-26 20:38:26,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-10-26 20:38:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 390. [2020-10-26 20:38:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-10-26 20:38:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 545 transitions. [2020-10-26 20:38:26,169 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 545 transitions. Word has length 146 [2020-10-26 20:38:26,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:26,170 INFO L481 AbstractCegarLoop]: Abstraction has 390 states and 545 transitions. [2020-10-26 20:38:26,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:38:26,171 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 545 transitions. [2020-10-26 20:38:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-26 20:38:26,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:26,174 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:26,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:38:26,174 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:26,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:26,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1822448670, now seen corresponding path program 1 times [2020-10-26 20:38:26,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:26,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708751540] [2020-10-26 20:38:26,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:26,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:26,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:27,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:27,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-26 20:38:27,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:27,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1630 [2020-10-26 20:38:27,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:27,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:27,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-26 20:38:27,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:38:28,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:28,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:28,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:28,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:28,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:28,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:38:28,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:28,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:28,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:28,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:28,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:28,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:28,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:28,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:28,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:38:28,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:28,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:28,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:28,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:38:28,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:38:28,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708751540] [2020-10-26 20:38:28,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:28,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:38:28,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289103602] [2020-10-26 20:38:28,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:38:28,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:28,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:38:28,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:38:28,261 INFO L87 Difference]: Start difference. First operand 390 states and 545 transitions. Second operand 6 states. [2020-10-26 20:38:29,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:29,896 INFO L93 Difference]: Finished difference Result 1080 states and 1552 transitions. [2020-10-26 20:38:29,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:38:29,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2020-10-26 20:38:29,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:29,911 INFO L225 Difference]: With dead ends: 1080 [2020-10-26 20:38:29,911 INFO L226 Difference]: Without dead ends: 696 [2020-10-26 20:38:29,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-26 20:38:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 685. [2020-10-26 20:38:29,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-10-26 20:38:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 957 transitions. [2020-10-26 20:38:29,973 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 957 transitions. Word has length 150 [2020-10-26 20:38:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:29,973 INFO L481 AbstractCegarLoop]: Abstraction has 685 states and 957 transitions. [2020-10-26 20:38:29,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:38:29,974 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 957 transitions. [2020-10-26 20:38:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-26 20:38:29,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:29,978 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:29,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:38:29,979 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:29,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:29,979 INFO L82 PathProgramCache]: Analyzing trace with hash -146536723, now seen corresponding path program 1 times [2020-10-26 20:38:29,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:29,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909437199] [2020-10-26 20:38:29,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:30,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:30,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:32,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:32,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-26 20:38:32,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:38:32,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2278 [2020-10-26 20:38:32,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:32,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-26 20:38:32,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:32,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:32,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:32,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:32,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:38:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:32,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:32,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:32,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:32,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:32,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:32,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:38:32,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:38:32,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 20:38:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:38:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:32,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:32,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:32,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:38:32,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:32,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-26 20:38:32,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-26 20:38:32,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:38:32,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909437199] [2020-10-26 20:38:32,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:32,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:32,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289179563] [2020-10-26 20:38:32,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:38:32,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:32,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:38:32,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:38:32,644 INFO L87 Difference]: Start difference. First operand 685 states and 957 transitions. Second operand 8 states. [2020-10-26 20:38:34,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:34,866 INFO L93 Difference]: Finished difference Result 1998 states and 2931 transitions. [2020-10-26 20:38:34,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:38:34,867 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-10-26 20:38:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:34,882 INFO L225 Difference]: With dead ends: 1998 [2020-10-26 20:38:34,883 INFO L226 Difference]: Without dead ends: 1319 [2020-10-26 20:38:34,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:34,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2020-10-26 20:38:34,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1294. [2020-10-26 20:38:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1294 states. [2020-10-26 20:38:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1782 transitions. [2020-10-26 20:38:34,963 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1782 transitions. Word has length 172 [2020-10-26 20:38:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:34,963 INFO L481 AbstractCegarLoop]: Abstraction has 1294 states and 1782 transitions. [2020-10-26 20:38:34,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:38:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1782 transitions. [2020-10-26 20:38:34,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-26 20:38:34,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:34,974 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:34,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:38:34,974 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:34,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:34,975 INFO L82 PathProgramCache]: Analyzing trace with hash 51471628, now seen corresponding path program 1 times [2020-10-26 20:38:34,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:34,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562837640] [2020-10-26 20:38:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:35,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:35,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:36,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:36,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-26 20:38:36,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:36,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1301 [2020-10-26 20:38:36,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:36,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:38:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:38:36,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:36,487 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:38:36,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:36,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:36,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:36,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:36,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:36,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:38:36,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:36,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:36,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:36,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:36,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:36,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:36,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:36,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:38:36,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:36,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:36,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:36,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:36,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:36,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:38:36,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:38:36,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:38:36,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:36,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:38:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:38:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 20:38:36,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:36,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:38:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 20:38:36,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562837640] [2020-10-26 20:38:36,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:36,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:36,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483793283] [2020-10-26 20:38:36,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:36,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:36,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:36,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:36,708 INFO L87 Difference]: Start difference. First operand 1294 states and 1782 transitions. Second operand 7 states. [2020-10-26 20:38:36,925 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:38:38,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:38,939 INFO L93 Difference]: Finished difference Result 2563 states and 3543 transitions. [2020-10-26 20:38:38,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:38:38,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-26 20:38:38,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:38,948 INFO L225 Difference]: With dead ends: 2563 [2020-10-26 20:38:38,948 INFO L226 Difference]: Without dead ends: 833 [2020-10-26 20:38:38,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:38,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-10-26 20:38:39,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 823. [2020-10-26 20:38:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-10-26 20:38:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1005 transitions. [2020-10-26 20:38:39,012 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1005 transitions. Word has length 202 [2020-10-26 20:38:39,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:39,014 INFO L481 AbstractCegarLoop]: Abstraction has 823 states and 1005 transitions. [2020-10-26 20:38:39,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:39,014 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1005 transitions. [2020-10-26 20:38:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-26 20:38:39,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:39,020 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:39,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:38:39,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:39,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:39,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1555540080, now seen corresponding path program 1 times [2020-10-26 20:38:39,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:39,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233343905] [2020-10-26 20:38:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:39,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:40,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:42,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:43,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:43,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-26 20:38:43,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:38:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4261 [2020-10-26 20:38:43,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:43,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:43,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:38:43,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:38:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:43,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:43,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:43,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:43,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:43,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:38:43,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:43,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:43,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:43,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:43,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:43,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:38:43,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:38:43,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:43,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:38:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:43,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:43,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:43,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 20:38:43,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:38:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:38:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:43,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 20:38:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:38:43,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:38:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:38:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 20:38:43,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233343905] [2020-10-26 20:38:43,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:43,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:43,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102215764] [2020-10-26 20:38:43,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:43,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:43,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:43,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:43,671 INFO L87 Difference]: Start difference. First operand 823 states and 1005 transitions. Second operand 7 states. [2020-10-26 20:38:45,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:45,404 INFO L93 Difference]: Finished difference Result 1759 states and 2187 transitions. [2020-10-26 20:38:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:38:45,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-10-26 20:38:45,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:45,411 INFO L225 Difference]: With dead ends: 1759 [2020-10-26 20:38:45,411 INFO L226 Difference]: Without dead ends: 996 [2020-10-26 20:38:45,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:45,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2020-10-26 20:38:45,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 984. [2020-10-26 20:38:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2020-10-26 20:38:45,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1194 transitions. [2020-10-26 20:38:45,448 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1194 transitions. Word has length 204 [2020-10-26 20:38:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:45,448 INFO L481 AbstractCegarLoop]: Abstraction has 984 states and 1194 transitions. [2020-10-26 20:38:45,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:45,448 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1194 transitions. [2020-10-26 20:38:45,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-26 20:38:45,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:45,454 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:45,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:38:45,454 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:45,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:45,455 INFO L82 PathProgramCache]: Analyzing trace with hash -815981512, now seen corresponding path program 1 times [2020-10-26 20:38:45,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:45,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627927692] [2020-10-26 20:38:45,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:45,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:45,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:45,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:47,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:50,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:50,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:50,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-26 20:38:50,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:38:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4860 [2020-10-26 20:38:50,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:38:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:38:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:50,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:50,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:50,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:50,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:50,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:50,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:38:50,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:50,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:50,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:50,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:50,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:50,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:50,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:50,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:50,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:50,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:38:50,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:50,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:50,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:50,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:38:50,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:50,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:50,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:50,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:50,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 20:38:50,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:50,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:38:50,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:38:50,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:50,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:38:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:50,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:50,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:50,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:38:50,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:38:50,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:38:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:50,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 76 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-26 20:38:50,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627927692] [2020-10-26 20:38:50,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:50,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:50,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114517755] [2020-10-26 20:38:50,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:50,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:50,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:50,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:50,659 INFO L87 Difference]: Start difference. First operand 984 states and 1194 transitions. Second operand 7 states. [2020-10-26 20:38:52,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:52,409 INFO L93 Difference]: Finished difference Result 1937 states and 2407 transitions. [2020-10-26 20:38:52,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:38:52,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-26 20:38:52,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:52,419 INFO L225 Difference]: With dead ends: 1937 [2020-10-26 20:38:52,419 INFO L226 Difference]: Without dead ends: 1013 [2020-10-26 20:38:52,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:52,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2020-10-26 20:38:52,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 993. [2020-10-26 20:38:52,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-10-26 20:38:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1158 transitions. [2020-10-26 20:38:52,466 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1158 transitions. Word has length 208 [2020-10-26 20:38:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:52,466 INFO L481 AbstractCegarLoop]: Abstraction has 993 states and 1158 transitions. [2020-10-26 20:38:52,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1158 transitions. [2020-10-26 20:38:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 20:38:52,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:52,472 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1] [2020-10-26 20:38:52,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:38:52,473 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:52,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:52,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2073873605, now seen corresponding path program 1 times [2020-10-26 20:38:52,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:52,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31141033] [2020-10-26 20:38:52,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:52,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:52,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:52,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:53,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:55,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:55,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-26 20:38:55,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:38:55,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2656 [2020-10-26 20:38:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:38:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 20:38:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:55,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:55,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:55,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:55,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:55,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:38:55,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:55,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:55,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:55,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:55,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:38:55,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:38:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:55,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:38:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:55,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:55,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:55,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:38:55,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:55,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-26 20:38:55,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 20:38:55,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:55,650 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:38:55,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31141033] [2020-10-26 20:38:55,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:55,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:38:55,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016996393] [2020-10-26 20:38:55,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:38:55,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:55,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:38:55,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:38:55,654 INFO L87 Difference]: Start difference. First operand 993 states and 1158 transitions. Second operand 8 states. [2020-10-26 20:38:58,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:58,038 INFO L93 Difference]: Finished difference Result 2242 states and 2669 transitions. [2020-10-26 20:38:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:38:58,038 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-26 20:38:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:58,046 INFO L225 Difference]: With dead ends: 2242 [2020-10-26 20:38:58,046 INFO L226 Difference]: Without dead ends: 1309 [2020-10-26 20:38:58,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:58,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2020-10-26 20:38:58,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1297. [2020-10-26 20:38:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1297 states. [2020-10-26 20:38:58,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1512 transitions. [2020-10-26 20:38:58,093 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1512 transitions. Word has length 218 [2020-10-26 20:38:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:58,094 INFO L481 AbstractCegarLoop]: Abstraction has 1297 states and 1512 transitions. [2020-10-26 20:38:58,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:38:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1512 transitions. [2020-10-26 20:38:58,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-26 20:38:58,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:58,100 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:58,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:38:58,101 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:58,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:58,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1381498227, now seen corresponding path program 1 times [2020-10-26 20:38:58,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:58,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389480920] [2020-10-26 20:38:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:58,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:58,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:58,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:59,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1285 [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 20:38:59,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:59,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:59,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:59,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:59,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:38:59,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:59,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:59,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:59,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:59,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:59,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:59,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:38:59,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:38:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:59,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:38:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-26 20:38:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 20:38:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:59,960 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:38:59,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389480920] [2020-10-26 20:38:59,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:59,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:59,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089952319] [2020-10-26 20:38:59,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:59,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:59,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:59,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:59,964 INFO L87 Difference]: Start difference. First operand 1297 states and 1512 transitions. Second operand 7 states. [2020-10-26 20:39:00,966 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-26 20:39:01,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:01,988 INFO L93 Difference]: Finished difference Result 2572 states and 3064 transitions. [2020-10-26 20:39:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:39:01,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-26 20:39:01,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:01,997 INFO L225 Difference]: With dead ends: 2572 [2020-10-26 20:39:01,997 INFO L226 Difference]: Without dead ends: 1335 [2020-10-26 20:39:02,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:39:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2020-10-26 20:39:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1299. [2020-10-26 20:39:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-10-26 20:39:02,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1491 transitions. [2020-10-26 20:39:02,052 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1491 transitions. Word has length 222 [2020-10-26 20:39:02,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:02,052 INFO L481 AbstractCegarLoop]: Abstraction has 1299 states and 1491 transitions. [2020-10-26 20:39:02,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:39:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1491 transitions. [2020-10-26 20:39:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-26 20:39:02,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:02,060 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2020-10-26 20:39:02,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:39:02,060 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:02,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:02,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1705951851, now seen corresponding path program 1 times [2020-10-26 20:39:02,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:02,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721196575] [2020-10-26 20:39:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:02,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:02,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:02,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:02,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-26 20:39:02,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-26 20:39:02,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-26 20:39:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-26 20:39:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:02,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:02,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:02,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:02,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:02,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:02,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:39:02,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:39:02,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:02,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:39:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:02,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:02,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-26 20:39:02,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-26 20:39:02,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721196575] [2020-10-26 20:39:02,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:02,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:39:02,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860547071] [2020-10-26 20:39:02,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:39:02,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:02,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:39:02,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:39:02,934 INFO L87 Difference]: Start difference. First operand 1299 states and 1491 transitions. Second operand 6 states. [2020-10-26 20:39:05,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:05,123 INFO L93 Difference]: Finished difference Result 2680 states and 3088 transitions. [2020-10-26 20:39:05,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:39:05,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2020-10-26 20:39:05,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:05,125 INFO L225 Difference]: With dead ends: 2680 [2020-10-26 20:39:05,125 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:39:05,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:39:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:39:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:39:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:39:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:39:05,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 243 [2020-10-26 20:39:05,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:05,132 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:39:05,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:39:05,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:39:05,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:39:05,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:39:05,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:39:05,599 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 135 [2020-10-26 20:39:05,736 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 146 [2020-10-26 20:39:05,940 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 37 [2020-10-26 20:39:06,815 WARN L193 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 61 [2020-10-26 20:39:06,970 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2020-10-26 20:39:07,288 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 47 [2020-10-26 20:39:07,553 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 47 [2020-10-26 20:39:07,558 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:39:07,559 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:39:07,559 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:39:07,559 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:39:07,559 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:39:07,559 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)|)) [2020-10-26 20:39:07,560 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:39:07,560 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:39:07,560 INFO L270 CegarLoopResult]: At program point L564(line 564) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a28~0)| 10))) (.cse4 (not (= 0 |old(~a25~0)|))) (.cse3 (not (= |old(~a19~0)| 1))) (.cse2 (not (= 8 |old(~a17~0)|))) (.cse0 (not (= |old(~a25~0)| 1))) (.cse5 (not (<= |old(~a17~0)| 7))) (.cse6 (not (<= |old(~a28~0)| 9)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse2 .cse4) (or .cse3 .cse5) (or .cse2 .cse4 .cse6) (or .cse5 .cse4) (or .cse0 .cse3 (not (= 11 |old(~a28~0)|)) .cse2) (or .cse0 .cse5 .cse6))) [2020-10-26 20:39:07,560 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:39:07,560 INFO L274 CegarLoopResult]: For program point L564-1(line 564) no Hoare annotation was computed. [2020-10-26 20:39:07,560 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:39:07,561 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:39:07,561 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:39:07,561 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:39:07,561 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:39:07,561 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:39:07,561 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:39:07,561 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:39:07,562 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:39:07,562 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:39:07,562 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:39:07,562 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:39:07,562 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,562 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-26 20:39:07,563 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,564 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:39:07,565 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:39:07,566 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:39:07,567 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,568 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:39:07,569 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:39:07,570 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:39:07,571 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,572 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:39:07,573 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:39:07,574 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,575 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:39:07,576 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse10 (= ~a17~0 |old(~a17~0)|)) (.cse9 (not (<= |old(~a17~0)| 7))) (.cse7 (not (<= |old(~a28~0)| 9))) (.cse8 (not (= |old(~a19~0)| 1))) (.cse6 (not (= 0 |old(~a25~0)|))) (.cse11 (= ~a19~0 1)) (.cse2 (= ~a25~0 |old(~a25~0)|)) (.cse12 (not (= |old(~a25~0)| 1))) (.cse14 (not (<= |old(~a28~0)| 10))) (.cse0 (= ~a28~0 |old(~a28~0)|)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a17~0 8)) (.cse13 (= ~a25~0 1)) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse5 (not (= 8 |old(~a17~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 .cse7) (or .cse8 .cse9 (and .cse0 .cse10 .cse1 .cse11 .cse2)) (or .cse12 .cse8 (not (= 11 |old(~a28~0)|)) .cse5 (and .cse1 .cse11 .cse3 .cse13 (= ~a28~0 11))) (or (and .cse0 .cse10 .cse1 .cse2 .cse4) .cse9 .cse6) (or .cse12 (and .cse0 .cse10 .cse1 .cse13 .cse4) .cse9 .cse7) (or .cse14 .cse8 .cse5 .cse6 (not (<= 10 |old(~a28~0)|)) (and .cse1 (<= 10 ~a28~0) .cse11 .cse2 .cse3 (<= ~a28~0 10))) (or .cse12 .cse14 (and .cse0 .cse1 .cse3 .cse13 .cse4) .cse5))) [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,577 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-26 20:39:07,578 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,579 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:39:07,580 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:39:07,581 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:39:07,582 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:39:07,582 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:39:07,582 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:39:07,582 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (<= 7 ~a28~0) (= ~a17~0 8) (= ~a11~0 0) (<= ~a28~0 7)) [2020-10-26 20:39:07,582 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:39:07,582 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:39:07,582 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 7)) (.cse6 (<= ~a28~0 10)) (.cse3 (= ~a19~0 1)) (.cse0 (= ~a25~0 1)) (.cse4 (= ~a25~0 0)) (.cse5 (= ~a17~0 8)) (.cse1 (<= ~a28~0 9))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2) (not (= 8 |old(~a17~0)|)) (and .cse3 .cse2) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (and .cse3 .cse4 .cse5 .cse6) (and .cse4 .cse2) (and .cse5 .cse0 .cse6) (not (<= |old(~a28~0)| 7)) (not (= 0 |old(~a11~0)|)) (not (= ~a21~0 1)) (and .cse3 .cse5 .cse0 (= ~a28~0 11)) (and .cse4 .cse5 .cse1))) [2020-10-26 20:39:07,583 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (and (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (<= 7 ~a28~0) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (<= ~a28~0 7)) (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (not (= ~a21~0 1))) [2020-10-26 20:39:07,583 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:39:07,583 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:39:07,583 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 7)) (.cse6 (<= ~a28~0 10)) (.cse3 (= ~a19~0 1)) (.cse0 (= ~a25~0 1)) (.cse4 (= ~a25~0 0)) (.cse5 (= ~a17~0 8)) (.cse1 (<= ~a28~0 9))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2) (not (= 8 |old(~a17~0)|)) (and .cse3 .cse2) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (and .cse3 .cse4 .cse5 .cse6) (and .cse4 .cse2) (and .cse5 .cse0 .cse6) (not (<= |old(~a28~0)| 7)) (not (= 0 |old(~a11~0)|)) (not (= ~a21~0 1)) (and .cse3 .cse5 .cse0 (= ~a28~0 11)) (and .cse4 .cse5 .cse1))) [2020-10-26 20:39:07,583 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:39:07,583 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:39:07,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:39:07 BoogieIcfgContainer [2020-10-26 20:39:07,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:39:07,607 INFO L168 Benchmark]: Toolchain (without parser) took 56443.88 ms. Allocated memory was 151.0 MB in the beginning and 759.2 MB in the end (delta: 608.2 MB). Free memory was 124.1 MB in the beginning and 326.1 MB in the end (delta: -202.1 MB). Peak memory consumption was 406.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:39:07,608 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:39:07,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.18 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 97.7 MB in the end (delta: 25.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:39:07,609 INFO L168 Benchmark]: Boogie Preprocessor took 271.98 ms. Allocated memory is still 151.0 MB. Free memory was 97.7 MB in the beginning and 128.7 MB in the end (delta: -31.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:39:07,610 INFO L168 Benchmark]: RCFGBuilder took 1365.21 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 128.7 MB in the beginning and 158.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 85.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:39:07,611 INFO L168 Benchmark]: TraceAbstraction took 54148.76 ms. Allocated memory was 202.4 MB in the beginning and 759.2 MB in the end (delta: 556.8 MB). Free memory was 157.4 MB in the beginning and 326.1 MB in the end (delta: -168.7 MB). Peak memory consumption was 388.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:39:07,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 643.18 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 97.7 MB in the end (delta: 25.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 271.98 ms. Allocated memory is still 151.0 MB. Free memory was 97.7 MB in the beginning and 128.7 MB in the end (delta: -31.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1365.21 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 128.7 MB in the beginning and 158.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 85.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 54148.76 ms. Allocated memory was 202.4 MB in the beginning and 759.2 MB in the end (delta: 556.8 MB). Free memory was 157.4 MB in the beginning and 326.1 MB in the end (delta: -168.7 MB). Peak memory consumption was 388.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((((((((((!(\old(a19) == 1) || ((a25 == 1 && a28 <= 9) && a17 <= 7)) || !(8 == \old(a17))) || (a19 == 1 && a17 <= 7)) || !(0 == \old(a25))) || !(7 <= \old(a28))) || (((a19 == 1 && a25 == 0) && a17 == 8) && a28 <= 10)) || (a25 == 0 && a17 <= 7)) || ((a17 == 8 && a25 == 1) && a28 <= 10)) || !(\old(a28) <= 7)) || !(0 == \old(a11))) || !(a21 == 1)) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 11)) || ((a25 == 0 && a17 == 8) && a28 <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 51.6s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 5101 SDslu, 454 SDs, 0 SdLazy, 8929 SolverSat, 1407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1299occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 143 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 148 PreInvPairs, 174 NumberOfFragments, 655 HoareAnnotationTreeSize, 148 FomulaSimplifications, 7110 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2317 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 1902 NumberOfCodeBlocks, 1902 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1892 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 622/688 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...