/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/Problem10_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:31:32,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:31:32,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:31:32,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:31:32,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:31:32,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:31:32,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:31:32,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:31:32,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:31:32,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:31:32,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:31:32,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:31:32,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:31:32,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:31:32,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:31:32,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:31:32,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:31:32,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:31:32,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:31:32,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:31:32,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:31:32,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:31:32,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:31:32,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:31:32,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:31:32,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:31:32,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:31:32,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:31:32,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:31:32,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:31:32,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:31:32,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:31:32,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:31:32,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:31:32,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:31:32,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:31:32,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:31:32,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:31:32,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:31:32,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:31:32,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:31:32,673 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 22:31:32,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:31:32,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:31:32,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:31:32,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:31:32,724 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:31:32,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:31:32,725 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:31:32,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:31:32,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:31:32,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:31:32,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:31:32,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:31:32,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:31:32,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:31:32,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:31:32,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:31:32,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:31:32,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:31:32,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:31:32,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:31:32,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:31:32,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:31:32,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:31:32,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:31:32,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:31:32,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:31:32,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:31:32,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:31:32,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:31:32,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:31:33,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:31:33,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:31:33,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:31:33,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:31:33,185 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:31:33,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label25.c [2020-10-26 22:31:33,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ff40c084/585a90bbc0704092b8e709d517c3bc2e/FLAG84f7bc056 [2020-10-26 22:31:33,977 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:31:33,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label25.c [2020-10-26 22:31:33,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ff40c084/585a90bbc0704092b8e709d517c3bc2e/FLAG84f7bc056 [2020-10-26 22:31:34,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ff40c084/585a90bbc0704092b8e709d517c3bc2e [2020-10-26 22:31:34,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:31:34,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:31:34,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:34,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:31:34,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:31:34,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:34,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b0b290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34, skipping insertion in model container [2020-10-26 22:31:34,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:34,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:31:34,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:31:34,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:34,745 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:31:34,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:34,914 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:31:34,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34 WrapperNode [2020-10-26 22:31:34,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:34,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:31:34,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:31:34,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:31:34,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:34,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:34,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:34,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:35,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:35,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:35,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (1/1) ... [2020-10-26 22:31:35,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:31:35,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:31:35,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:31:35,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:31:35,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (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 22:31:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:31:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:31:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:31:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:31:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:31:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:31:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:31:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:31:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:31:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:31:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:31:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:31:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:31:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:31:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:31:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:31:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:31:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:31:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:31:36,451 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:31:36,452 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:31:36,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:36 BoogieIcfgContainer [2020-10-26 22:31:36,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:31:36,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:31:36,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:31:36,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:31:36,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:31:34" (1/3) ... [2020-10-26 22:31:36,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d8fd67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:36, skipping insertion in model container [2020-10-26 22:31:36,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:34" (2/3) ... [2020-10-26 22:31:36,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d8fd67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:36, skipping insertion in model container [2020-10-26 22:31:36,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:36" (3/3) ... [2020-10-26 22:31:36,463 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label25.c [2020-10-26 22:31:36,474 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:31:36,480 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:31:36,492 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:31:36,522 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:31:36,522 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:31:36,522 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:31:36,522 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:31:36,522 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:31:36,523 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:31:36,523 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:31:36,523 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:31:36,546 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:31:36,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-26 22:31:36,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:36,558 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] [2020-10-26 22:31:36,558 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:36,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:36,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1285494074, now seen corresponding path program 1 times [2020-10-26 22:31:36,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:36,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070748678] [2020-10-26 22:31:36,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:36,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:37,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:37,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:31:37,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-10-26 22:31:37,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:31:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 22:31:37,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:37,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:37,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:37,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:31:37,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:37,710 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 22:31:37,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070748678] [2020-10-26 22:31:37,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:37,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 22:31:37,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505103631] [2020-10-26 22:31:37,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:37,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:37,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:37,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:37,743 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-26 22:31:39,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:39,609 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:31:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:39,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2020-10-26 22:31:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:39,636 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:31:39,636 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:31:39,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:31:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:31:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:31:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:31:39,719 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 71 [2020-10-26 22:31:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:39,720 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:31:39,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:31:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-26 22:31:39,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:39,728 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:39,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:31:39,728 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:39,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:39,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1488821687, now seen corresponding path program 1 times [2020-10-26 22:31:39,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:39,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945776951] [2020-10-26 22:31:39,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:39,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:40,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-26 22:31:40,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:40,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-10-26 22:31:40,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:31:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-26 22:31:40,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:40,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:40,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:40,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:40,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:31:40,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:40,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:40,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:41,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:41,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:41,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:41,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:41,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-26 22:31:41,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:31:41,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:31:41,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945776951] [2020-10-26 22:31:41,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:41,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:31:41,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244211828] [2020-10-26 22:31:41,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:41,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:41,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:41,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:41,275 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 7 states. [2020-10-26 22:31:43,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:43,334 INFO L93 Difference]: Finished difference Result 741 states and 1035 transitions. [2020-10-26 22:31:43,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:31:43,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-26 22:31:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:43,345 INFO L225 Difference]: With dead ends: 741 [2020-10-26 22:31:43,345 INFO L226 Difference]: Without dead ends: 738 [2020-10-26 22:31:43,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:31:43,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-10-26 22:31:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 589. [2020-10-26 22:31:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-26 22:31:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 848 transitions. [2020-10-26 22:31:43,404 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 848 transitions. Word has length 141 [2020-10-26 22:31:43,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:43,405 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 848 transitions. [2020-10-26 22:31:43,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 848 transitions. [2020-10-26 22:31:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-26 22:31:43,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:43,411 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:43,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:31:43,412 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:43,413 INFO L82 PathProgramCache]: Analyzing trace with hash 276903839, now seen corresponding path program 1 times [2020-10-26 22:31:43,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:43,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338987963] [2020-10-26 22:31:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:43,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:43,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:45,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:45,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-26 22:31:45,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:45,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1784 [2020-10-26 22:31:45,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-26 22:31:45,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:45,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:45,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:45,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:45,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:45,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 22:31:45,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:45,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:45,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:45,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:45,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:45,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:31:45,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:45,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-26 22:31:45,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:31:45,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:45,993 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:45,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338987963] [2020-10-26 22:31:45,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:45,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:45,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726864802] [2020-10-26 22:31:45,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:45,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:45,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:45,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:45,996 INFO L87 Difference]: Start difference. First operand 589 states and 848 transitions. Second operand 7 states. [2020-10-26 22:31:47,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:47,564 INFO L93 Difference]: Finished difference Result 1480 states and 2144 transitions. [2020-10-26 22:31:47,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:31:47,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-10-26 22:31:47,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:47,572 INFO L225 Difference]: With dead ends: 1480 [2020-10-26 22:31:47,572 INFO L226 Difference]: Without dead ends: 897 [2020-10-26 22:31:47,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-10-26 22:31:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 748. [2020-10-26 22:31:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-26 22:31:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1010 transitions. [2020-10-26 22:31:47,617 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1010 transitions. Word has length 193 [2020-10-26 22:31:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:47,618 INFO L481 AbstractCegarLoop]: Abstraction has 748 states and 1010 transitions. [2020-10-26 22:31:47,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1010 transitions. [2020-10-26 22:31:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-26 22:31:47,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:47,624 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 22:31:47,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:31:47,625 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:47,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:47,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1101768820, now seen corresponding path program 1 times [2020-10-26 22:31:47,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:47,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069879801] [2020-10-26 22:31:47,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:48,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:49,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-26 22:31:49,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:49,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1607 [2020-10-26 22:31:49,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:31:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-26 22:31:49,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:49,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:49,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:49,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:49,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:31:49,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:49,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:49,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:49,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:49,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:49,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:49,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:31:49,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:49,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:49,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:49,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:49,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:49,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-26 22:31:49,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:49,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:49,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069879801] [2020-10-26 22:31:49,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:49,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:49,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458098324] [2020-10-26 22:31:49,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:49,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:49,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:49,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:49,835 INFO L87 Difference]: Start difference. First operand 748 states and 1010 transitions. Second operand 7 states. [2020-10-26 22:31:51,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:51,510 INFO L93 Difference]: Finished difference Result 1818 states and 2553 transitions. [2020-10-26 22:31:51,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:31:51,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-10-26 22:31:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:51,522 INFO L225 Difference]: With dead ends: 1818 [2020-10-26 22:31:51,522 INFO L226 Difference]: Without dead ends: 1076 [2020-10-26 22:31:51,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-10-26 22:31:51,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1052. [2020-10-26 22:31:51,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-26 22:31:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1417 transitions. [2020-10-26 22:31:51,609 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1417 transitions. Word has length 223 [2020-10-26 22:31:51,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:51,610 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1417 transitions. [2020-10-26 22:31:51,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1417 transitions. [2020-10-26 22:31:51,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-26 22:31:51,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:51,619 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:51,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:31:51,620 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:51,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:51,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1264671898, now seen corresponding path program 1 times [2020-10-26 22:31:51,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:51,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053898878] [2020-10-26 22:31:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:56,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:56,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-26 22:31:56,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:31:56,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-26 22:31:56,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:56,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:56,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:56,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:56,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:56,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:56,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:56,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 22:31:56,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:56,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:56,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:56,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:56,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:56,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:56,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:56,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:56,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:31:56,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-26 22:31:56,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:31:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:31:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:57,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 22:31:57,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,244 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 126 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:31:57,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053898878] [2020-10-26 22:31:57,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:57,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:57,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242552708] [2020-10-26 22:31:57,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:57,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:57,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:57,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:57,248 INFO L87 Difference]: Start difference. First operand 1052 states and 1417 transitions. Second operand 7 states. [2020-10-26 22:31:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:58,805 INFO L93 Difference]: Finished difference Result 2414 states and 3227 transitions. [2020-10-26 22:31:58,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:31:58,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-10-26 22:31:58,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:58,813 INFO L225 Difference]: With dead ends: 2414 [2020-10-26 22:31:58,814 INFO L226 Difference]: Without dead ends: 1368 [2020-10-26 22:31:58,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:58,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-10-26 22:31:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1350. [2020-10-26 22:31:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1350 states. [2020-10-26 22:31:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1755 transitions. [2020-10-26 22:31:58,866 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1755 transitions. Word has length 230 [2020-10-26 22:31:58,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:58,866 INFO L481 AbstractCegarLoop]: Abstraction has 1350 states and 1755 transitions. [2020-10-26 22:31:58,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1755 transitions. [2020-10-26 22:31:58,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-26 22:31:58,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:58,875 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:58,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:31:58,876 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:58,876 INFO L82 PathProgramCache]: Analyzing trace with hash 303533686, now seen corresponding path program 1 times [2020-10-26 22:31:58,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:58,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348712965] [2020-10-26 22:31:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:59,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:59,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:59,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:00,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-26 22:32:00,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:00,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2028 [2020-10-26 22:32:00,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:32:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:32:00,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:01,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:01,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:01,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:01,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:01,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:01,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:01,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:32:01,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 22:32:01,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:01,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 22:32:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:01,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:01,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-26 22:32:01,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-26 22:32:01,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:01,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 22:32:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 202 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:01,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348712965] [2020-10-26 22:32:01,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:01,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:01,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132066069] [2020-10-26 22:32:01,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:01,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:01,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:01,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:01,805 INFO L87 Difference]: Start difference. First operand 1350 states and 1755 transitions. Second operand 7 states. [2020-10-26 22:32:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:03,227 INFO L93 Difference]: Finished difference Result 2680 states and 3980 transitions. [2020-10-26 22:32:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:03,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-26 22:32:03,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:03,244 INFO L225 Difference]: With dead ends: 2680 [2020-10-26 22:32:03,244 INFO L226 Difference]: Without dead ends: 1448 [2020-10-26 22:32:03,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2020-10-26 22:32:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1348. [2020-10-26 22:32:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1348 states. [2020-10-26 22:32:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1736 transitions. [2020-10-26 22:32:03,321 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1736 transitions. Word has length 270 [2020-10-26 22:32:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:03,322 INFO L481 AbstractCegarLoop]: Abstraction has 1348 states and 1736 transitions. [2020-10-26 22:32:03,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:03,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1736 transitions. [2020-10-26 22:32:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-26 22:32:03,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:03,329 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:03,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:32:03,331 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:03,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:03,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1461525321, now seen corresponding path program 1 times [2020-10-26 22:32:03,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:03,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77393326] [2020-10-26 22:32:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:03,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:07,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:07,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-26 22:32:07,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:07,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4450 [2020-10-26 22:32:07,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:07,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:07,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:07,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:07,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:07,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:07,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:07,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:07,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:07,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:07,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:07,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:07,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:08,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:08,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 22:32:08,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:08,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:08,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:08,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:08,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:08,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:08,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-26 22:32:08,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:08,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:08,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:32:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:08,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:08,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 22:32:08,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:08,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 260 proven. 76 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-26 22:32:08,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77393326] [2020-10-26 22:32:08,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:08,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:08,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979825541] [2020-10-26 22:32:08,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:08,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:08,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:08,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:08,480 INFO L87 Difference]: Start difference. First operand 1348 states and 1736 transitions. Second operand 8 states. [2020-10-26 22:32:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:10,780 INFO L93 Difference]: Finished difference Result 3145 states and 4155 transitions. [2020-10-26 22:32:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:10,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 300 [2020-10-26 22:32:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:10,793 INFO L225 Difference]: With dead ends: 3145 [2020-10-26 22:32:10,793 INFO L226 Difference]: Without dead ends: 1946 [2020-10-26 22:32:10,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:10,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2020-10-26 22:32:10,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1348. [2020-10-26 22:32:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1348 states. [2020-10-26 22:32:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1633 transitions. [2020-10-26 22:32:10,853 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1633 transitions. Word has length 300 [2020-10-26 22:32:10,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:10,854 INFO L481 AbstractCegarLoop]: Abstraction has 1348 states and 1633 transitions. [2020-10-26 22:32:10,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1633 transitions. [2020-10-26 22:32:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-26 22:32:10,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:10,863 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:10,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:32:10,863 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:10,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:10,864 INFO L82 PathProgramCache]: Analyzing trace with hash 511653283, now seen corresponding path program 1 times [2020-10-26 22:32:10,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:10,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033930443] [2020-10-26 22:32:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:16,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 361 [2020-10-26 22:32:16,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:16,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-26 22:32:16,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:16,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:16,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:16,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:16,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:16,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:16,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:16,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:16,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:16,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-26 22:32:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:16,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:16,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:16,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 22:32:16,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:16,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:32:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:16,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:16,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:16,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:16,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 22:32:16,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:16,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:16,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:16,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:16,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 267 proven. 76 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-26 22:32:16,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033930443] [2020-10-26 22:32:16,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:16,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:16,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411787171] [2020-10-26 22:32:16,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:16,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:16,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:16,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:16,817 INFO L87 Difference]: Start difference. First operand 1348 states and 1633 transitions. Second operand 7 states. [2020-10-26 22:32:20,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:20,802 INFO L93 Difference]: Finished difference Result 2859 states and 3560 transitions. [2020-10-26 22:32:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:20,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 345 [2020-10-26 22:32:20,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:20,812 INFO L225 Difference]: With dead ends: 2859 [2020-10-26 22:32:20,812 INFO L226 Difference]: Without dead ends: 1660 [2020-10-26 22:32:20,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:20,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2020-10-26 22:32:20,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1650. [2020-10-26 22:32:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2020-10-26 22:32:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 1972 transitions. [2020-10-26 22:32:20,869 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 1972 transitions. Word has length 345 [2020-10-26 22:32:20,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:20,870 INFO L481 AbstractCegarLoop]: Abstraction has 1650 states and 1972 transitions. [2020-10-26 22:32:20,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 1972 transitions. [2020-10-26 22:32:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-26 22:32:20,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:20,876 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:20,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:32:20,876 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:20,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1587014967, now seen corresponding path program 1 times [2020-10-26 22:32:20,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:20,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348060474] [2020-10-26 22:32:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:22,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:22,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-26 22:32:22,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1706 [2020-10-26 22:32:22,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:32:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:22,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:22,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:22,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:22,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:32:22,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:22,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:22,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:22,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:22,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:22,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:22,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 22:32:22,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:22,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:22,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:22,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:22,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:22,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:22,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:22,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:22,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 22:32:22,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:32:22,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:22,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:32:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:22,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:23,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:23,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:23,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:23,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 22:32:23,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:23,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:23,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:32:23,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348060474] [2020-10-26 22:32:23,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:23,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:23,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475942679] [2020-10-26 22:32:23,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:23,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:23,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:23,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:23,163 INFO L87 Difference]: Start difference. First operand 1650 states and 1972 transitions. Second operand 7 states. [2020-10-26 22:32:25,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:25,066 INFO L93 Difference]: Finished difference Result 3322 states and 4034 transitions. [2020-10-26 22:32:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:25,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2020-10-26 22:32:25,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:25,084 INFO L225 Difference]: With dead ends: 3322 [2020-10-26 22:32:25,084 INFO L226 Difference]: Without dead ends: 1821 [2020-10-26 22:32:25,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2020-10-26 22:32:25,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1805. [2020-10-26 22:32:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1805 states. [2020-10-26 22:32:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2152 transitions. [2020-10-26 22:32:25,148 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2152 transitions. Word has length 364 [2020-10-26 22:32:25,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:25,149 INFO L481 AbstractCegarLoop]: Abstraction has 1805 states and 2152 transitions. [2020-10-26 22:32:25,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:25,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2152 transitions. [2020-10-26 22:32:25,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-26 22:32:25,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:25,155 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:25,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:25,155 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:25,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1064070621, now seen corresponding path program 1 times [2020-10-26 22:32:25,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:25,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461290289] [2020-10-26 22:32:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:25,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-26 22:32:27,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2412 [2020-10-26 22:32:27,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:32:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:27,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:27,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:27,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:28,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:28,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-26 22:32:28,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:32:28,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:28,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:32:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:28,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:28,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-26 22:32:28,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:28,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:28,432 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 352 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:32:28,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461290289] [2020-10-26 22:32:28,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:28,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:28,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759873594] [2020-10-26 22:32:28,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:28,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:28,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:28,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:28,435 INFO L87 Difference]: Start difference. First operand 1805 states and 2152 transitions. Second operand 7 states. [2020-10-26 22:32:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:30,614 INFO L93 Difference]: Finished difference Result 4363 states and 5312 transitions. [2020-10-26 22:32:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:30,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 374 [2020-10-26 22:32:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:30,635 INFO L225 Difference]: With dead ends: 4363 [2020-10-26 22:32:30,635 INFO L226 Difference]: Without dead ends: 2707 [2020-10-26 22:32:30,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:30,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2020-10-26 22:32:30,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2548. [2020-10-26 22:32:30,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-10-26 22:32:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3022 transitions. [2020-10-26 22:32:30,713 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3022 transitions. Word has length 374 [2020-10-26 22:32:30,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:30,714 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3022 transitions. [2020-10-26 22:32:30,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:30,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3022 transitions. [2020-10-26 22:32:30,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-26 22:32:30,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:30,750 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:30,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:30,750 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:30,751 INFO L82 PathProgramCache]: Analyzing trace with hash 469553197, now seen corresponding path program 1 times [2020-10-26 22:32:30,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:30,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139594320] [2020-10-26 22:32:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:32,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-10-26 22:32:33,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:33,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2319 [2020-10-26 22:32:33,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-26 22:32:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 22:32:33,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:33,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 22:32:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-26 22:32:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 22:32:33,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 22:32:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:33,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:33,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-26 22:32:33,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:32:33,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 370 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-26 22:32:34,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139594320] [2020-10-26 22:32:34,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:34,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:34,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434353022] [2020-10-26 22:32:34,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:34,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:34,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:34,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:34,023 INFO L87 Difference]: Start difference. First operand 2548 states and 3022 transitions. Second operand 7 states. [2020-10-26 22:32:35,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:35,364 INFO L93 Difference]: Finished difference Result 5020 states and 6107 transitions. [2020-10-26 22:32:35,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:35,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 375 [2020-10-26 22:32:35,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:35,377 INFO L225 Difference]: With dead ends: 5020 [2020-10-26 22:32:35,377 INFO L226 Difference]: Without dead ends: 2602 [2020-10-26 22:32:35,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:35,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2020-10-26 22:32:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2546. [2020-10-26 22:32:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2546 states. [2020-10-26 22:32:35,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3005 transitions. [2020-10-26 22:32:35,458 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3005 transitions. Word has length 375 [2020-10-26 22:32:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:35,458 INFO L481 AbstractCegarLoop]: Abstraction has 2546 states and 3005 transitions. [2020-10-26 22:32:35,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3005 transitions. [2020-10-26 22:32:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-10-26 22:32:35,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:35,466 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:35,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:32:35,467 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:35,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:35,467 INFO L82 PathProgramCache]: Analyzing trace with hash -908134595, now seen corresponding path program 1 times [2020-10-26 22:32:35,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:35,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603644017] [2020-10-26 22:32:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 399 [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1614 [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:37,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:32:37,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:37,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:32:37,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 22:32:37,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:32:37,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:32:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:37,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-26 22:32:37,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:37,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 352 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-26 22:32:37,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603644017] [2020-10-26 22:32:37,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:37,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:37,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762791682] [2020-10-26 22:32:37,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:37,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:37,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:37,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:37,720 INFO L87 Difference]: Start difference. First operand 2546 states and 3005 transitions. Second operand 7 states. [2020-10-26 22:32:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:39,650 INFO L93 Difference]: Finished difference Result 5676 states and 6819 transitions. [2020-10-26 22:32:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:39,655 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 383 [2020-10-26 22:32:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:39,670 INFO L225 Difference]: With dead ends: 5676 [2020-10-26 22:32:39,670 INFO L226 Difference]: Without dead ends: 3279 [2020-10-26 22:32:39,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-10-26 22:32:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3128. [2020-10-26 22:32:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3128 states. [2020-10-26 22:32:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 3753 transitions. [2020-10-26 22:32:39,770 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 3753 transitions. Word has length 383 [2020-10-26 22:32:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:39,771 INFO L481 AbstractCegarLoop]: Abstraction has 3128 states and 3753 transitions. [2020-10-26 22:32:39,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 3753 transitions. [2020-10-26 22:32:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-26 22:32:39,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:39,783 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:39,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:32:39,783 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:39,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:39,784 INFO L82 PathProgramCache]: Analyzing trace with hash -8872189, now seen corresponding path program 1 times [2020-10-26 22:32:39,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:39,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752581117] [2020-10-26 22:32:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:39,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2802 [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-26 22:32:42,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:42,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:42,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:42,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 22:32:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:43,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:43,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:32:43,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:43,283 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 461 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 22:32:43,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752581117] [2020-10-26 22:32:43,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:43,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:43,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629376105] [2020-10-26 22:32:43,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:43,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:43,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:43,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:43,285 INFO L87 Difference]: Start difference. First operand 3128 states and 3753 transitions. Second operand 8 states. [2020-10-26 22:32:45,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:45,728 INFO L93 Difference]: Finished difference Result 6693 states and 8008 transitions. [2020-10-26 22:32:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:45,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 393 [2020-10-26 22:32:45,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:45,745 INFO L225 Difference]: With dead ends: 6693 [2020-10-26 22:32:45,745 INFO L226 Difference]: Without dead ends: 3714 [2020-10-26 22:32:45,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-26 22:32:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2020-10-26 22:32:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3424. [2020-10-26 22:32:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3424 states. [2020-10-26 22:32:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3424 states to 3424 states and 4014 transitions. [2020-10-26 22:32:45,841 INFO L78 Accepts]: Start accepts. Automaton has 3424 states and 4014 transitions. Word has length 393 [2020-10-26 22:32:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:45,842 INFO L481 AbstractCegarLoop]: Abstraction has 3424 states and 4014 transitions. [2020-10-26 22:32:45,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3424 states and 4014 transitions. [2020-10-26 22:32:45,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-10-26 22:32:45,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:45,852 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:32:45,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:32:45,853 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:45,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:45,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1250277853, now seen corresponding path program 1 times [2020-10-26 22:32:45,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:45,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179870430] [2020-10-26 22:32:45,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:46,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:46,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:46,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:50,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-26 22:32:50,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:32:50,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 22:32:50,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:32:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:50,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:32:50,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:51,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:51,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:51,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:32:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-10-26 22:32:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:51,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:51,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-26 22:32:51,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:51,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:51,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:51,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,687 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 384 proven. 81 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:51,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179870430] [2020-10-26 22:32:51,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:51,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 22:32:51,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495752257] [2020-10-26 22:32:51,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 22:32:51,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:51,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 22:32:51,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:51,689 INFO L87 Difference]: Start difference. First operand 3424 states and 4014 transitions. Second operand 10 states. [2020-10-26 22:32:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:54,642 INFO L93 Difference]: Finished difference Result 7999 states and 9730 transitions. [2020-10-26 22:32:54,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-26 22:32:54,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 409 [2020-10-26 22:32:54,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:54,684 INFO L225 Difference]: With dead ends: 7999 [2020-10-26 22:32:54,684 INFO L226 Difference]: Without dead ends: 4704 [2020-10-26 22:32:54,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-10-26 22:32:54,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-10-26 22:32:54,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4304. [2020-10-26 22:32:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4304 states. [2020-10-26 22:32:54,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 5090 transitions. [2020-10-26 22:32:54,846 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 5090 transitions. Word has length 409 [2020-10-26 22:32:54,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:54,846 INFO L481 AbstractCegarLoop]: Abstraction has 4304 states and 5090 transitions. [2020-10-26 22:32:54,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 22:32:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 5090 transitions. [2020-10-26 22:32:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-26 22:32:54,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:54,856 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:54,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:32:54,857 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:54,857 INFO L82 PathProgramCache]: Analyzing trace with hash 290076175, now seen corresponding path program 1 times [2020-10-26 22:32:54,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:54,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862032899] [2020-10-26 22:32:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:54,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 427 [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 22:32:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:55,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:55,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:32:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:32:55,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 22:32:55,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-26 22:32:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:56,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-26 22:32:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 192 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-26 22:32:56,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862032899] [2020-10-26 22:32:56,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:56,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:56,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035799276] [2020-10-26 22:32:56,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:56,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:56,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:56,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:56,209 INFO L87 Difference]: Start difference. First operand 4304 states and 5090 transitions. Second operand 5 states. [2020-10-26 22:32:57,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:57,735 INFO L93 Difference]: Finished difference Result 9335 states and 11184 transitions. [2020-10-26 22:32:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:57,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 411 [2020-10-26 22:32:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:57,750 INFO L225 Difference]: With dead ends: 9335 [2020-10-26 22:32:57,750 INFO L226 Difference]: Without dead ends: 5180 [2020-10-26 22:32:57,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2020-10-26 22:32:57,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 5031. [2020-10-26 22:32:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5031 states. [2020-10-26 22:32:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5031 states to 5031 states and 5929 transitions. [2020-10-26 22:32:57,875 INFO L78 Accepts]: Start accepts. Automaton has 5031 states and 5929 transitions. Word has length 411 [2020-10-26 22:32:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:57,876 INFO L481 AbstractCegarLoop]: Abstraction has 5031 states and 5929 transitions. [2020-10-26 22:32:57,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5031 states and 5929 transitions. [2020-10-26 22:32:57,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-26 22:32:57,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:57,888 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 22:32:57,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:32:57,889 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:57,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:57,889 INFO L82 PathProgramCache]: Analyzing trace with hash 144175375, now seen corresponding path program 1 times [2020-10-26 22:32:57,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:57,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209196523] [2020-10-26 22:32:57,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 427 [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-26 22:32:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:58,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:58,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:32:58,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:32:58,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:32:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 22:32:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 22:32:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-26 22:32:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:59,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:59,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:59,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:32:59,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:32:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,289 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 192 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-26 22:32:59,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209196523] [2020-10-26 22:32:59,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:59,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:59,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183786650] [2020-10-26 22:32:59,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:59,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:59,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:59,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:59,292 INFO L87 Difference]: Start difference. First operand 5031 states and 5929 transitions. Second operand 5 states. [2020-10-26 22:33:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:00,316 INFO L93 Difference]: Finished difference Result 9787 states and 11533 transitions. [2020-10-26 22:33:00,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:00,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 411 [2020-10-26 22:33:00,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:00,318 INFO L225 Difference]: With dead ends: 9787 [2020-10-26 22:33:00,318 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:33:00,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:00,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:33:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:33:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:33:00,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:33:00,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 411 [2020-10-26 22:33:00,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:00,338 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:33:00,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:33:00,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:33:00,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:33:00,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:33:01,762 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 329 DAG size of output: 264 [2020-10-26 22:33:03,049 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 264 [2020-10-26 22:33:04,378 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 253 DAG size of output: 59 [2020-10-26 22:33:05,827 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 263 DAG size of output: 72 [2020-10-26 22:33:06,367 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 51 [2020-10-26 22:33:07,621 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 253 DAG size of output: 59 [2020-10-26 22:33:07,625 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:33:07,626 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:33:07,626 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:33:07,626 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:33:07,626 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:07,626 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:33:07,626 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:33:07,627 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,628 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:33:07,629 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:33:07,630 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,631 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:33:07,632 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:33:07,633 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,634 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,635 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:33:07,636 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:33:07,637 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:33:07,638 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,639 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse12 (= ~a10~0 0)) (.cse7 (= 7 ~a19~0)) (.cse8 (= ~a1~0 |old(~a1~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse9 (= ~a10~0 |old(~a10~0)|))) (let ((.cse1 (not (<= |old(~a10~0)| 2))) (.cse0 (and .cse8 .cse13 .cse9)) (.cse3 (not (<= 1 |old(~a10~0)|))) (.cse6 (and .cse12 (not .cse7) .cse8 .cse13)) (.cse2 (not (<= |old(~a1~0)| 505272))) (.cse4 (= 7 |old(~a19~0)|)) (.cse10 (not (= 14 ~a4~0))) (.cse5 (not (= 0 |old(~a10~0)|))) (.cse11 (not (= ~a12~0 0)))) (and (or (not (<= 221 |old(~a1~0)|)) .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (<= 2 |old(~a10~0)|)) .cse1) (or .cse4 (not (= 9 |old(~a19~0)|)) .cse5 .cse6) (or .cse4 .cse0 .cse3) (or .cse4 .cse6 .cse5 .cse2) (or (and .cse7 .cse8 .cse9) (not (= |old(~a10~0)| 1)) .cse10 (not (<= |old(~a1~0)| 33)) (not .cse4) (not (<= 0 (+ |old(~a1~0)| 12))) .cse11) (or .cse4 .cse10 .cse5 (not (= 8 |old(~a19~0)|)) (and .cse12 .cse8 .cse13) .cse11)))) [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:33:07,640 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:33:07,641 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,642 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L270 CegarLoopResult]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a10~0)| 2))) (.cse6 (not (<= |old(~a1~0)| 505272))) (.cse2 (not (<= 1 |old(~a10~0)|))) (.cse1 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0))) (.cse4 (= 7 |old(~a19~0)|)) (.cse5 (not (= 0 |old(~a10~0)|)))) (and (or .cse0 .cse1 (not (<= |old(~a1~0)| 33)) (not (<= 0 (+ |old(~a1~0)| 12))) .cse2 .cse3) (or (not (<= 2 |old(~a10~0)|)) .cse0) (or .cse4 .cse5 .cse6) (or (not (<= 221 |old(~a1~0)|)) .cse0 .cse6 .cse2) (or .cse4 .cse2) (or .cse4 .cse1 .cse5 (not (= 8 |old(~a19~0)|)) .cse3) (or .cse4 (not (= 9 |old(~a19~0)|)) .cse5))) [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:33:07,643 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:07,644 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-26 22:33:07,644 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:33:07,645 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:07,645 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-26 22:33:07,645 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:07,645 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse10 (= |old(~a10~0)| 1)) (.cse7 (= 0 |old(~a10~0)|))) (let ((.cse4 (<= ~a10~0 2)) (.cse6 (<= ~a1~0 505272)) (.cse5 (<= 1 ~a10~0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a10~0 0)) (.cse8 (or .cse10 .cse7)) (.cse1 (= ~a12~0 0)) (.cse3 (not (= 7 ~a19~0))) (.cse9 (or (not .cse10) (<= (+ |old(~a1~0)| 13) 0)))) (or (and (<= 0 (+ ~a1~0 12)) (= ~a10~0 1) .cse0 (<= ~a1~0 33) .cse1) (and .cse2 (= ~a19~0 9) .cse3) (and .cse4 (<= 2 ~a10~0)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse4 .cse5 .cse6 (<= 221 ~a1~0)) (not .cse7) (and .cse2 .cse8 .cse6 .cse3 .cse9) (and .cse5 .cse3) (and (= ~a19~0 8) .cse0 .cse2 .cse8 .cse1 .cse3 .cse9)))) [2020-10-26 22:33:07,645 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:33:07,645 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:33:07,645 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse10 (= |old(~a10~0)| 1)) (.cse7 (= 0 |old(~a10~0)|))) (let ((.cse4 (<= ~a10~0 2)) (.cse6 (<= ~a1~0 505272)) (.cse5 (<= 1 ~a10~0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a10~0 0)) (.cse8 (or .cse10 .cse7)) (.cse1 (= ~a12~0 0)) (.cse3 (not (= 7 ~a19~0))) (.cse9 (or (not .cse10) (<= (+ |old(~a1~0)| 13) 0)))) (or (and (<= 0 (+ ~a1~0 12)) (= ~a10~0 1) .cse0 (<= ~a1~0 33) .cse1) (and .cse2 (= ~a19~0 9) .cse3) (and .cse4 (<= 2 ~a10~0)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse4 .cse5 .cse6 (<= 221 ~a1~0)) (not .cse7) (and .cse2 .cse8 .cse6 .cse3 .cse9) (and .cse5 .cse3) (and (= ~a19~0 8) .cse0 .cse2 .cse8 .cse1 .cse3 .cse9)))) [2020-10-26 22:33:07,646 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:07,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:33:07 BoogieIcfgContainer [2020-10-26 22:33:07,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:33:07,673 INFO L168 Benchmark]: Toolchain (without parser) took 93499.22 ms. Allocated memory was 155.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 128.5 MB in the beginning and 999.8 MB in the end (delta: -871.3 MB). Peak memory consumption was 729.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:07,675 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 155.2 MB. Free memory is still 128.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:33:07,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.01 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 101.0 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:07,681 INFO L168 Benchmark]: Boogie Preprocessor took 137.26 ms. Allocated memory is still 155.2 MB. Free memory was 100.8 MB in the beginning and 96.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:07,682 INFO L168 Benchmark]: RCFGBuilder took 1397.08 ms. Allocated memory is still 155.2 MB. Free memory was 96.2 MB in the beginning and 62.3 MB in the end (delta: 34.0 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:07,683 INFO L168 Benchmark]: TraceAbstraction took 91215.18 ms. Allocated memory was 155.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 61.7 MB in the beginning and 999.8 MB in the end (delta: -938.1 MB). Peak memory consumption was 661.5 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:07,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 155.2 MB. Free memory is still 128.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 738.01 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 101.0 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.26 ms. Allocated memory is still 155.2 MB. Free memory was 100.8 MB in the beginning and 96.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1397.08 ms. Allocated memory is still 155.2 MB. Free memory was 96.2 MB in the beginning and 62.3 MB in the end (delta: 34.0 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 91215.18 ms. Allocated memory was 155.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 61.7 MB in the beginning and 999.8 MB in the end (delta: -938.1 MB). Peak memory consumption was 661.5 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: 584]: Loop Invariant Derived loop invariant: ((((((((((((0 <= a1 + 12 && a10 == 1) && 14 == a4) && a1 <= 33) && a12 == 0) || ((a10 == 0 && a19 == 9) && !(7 == a19))) || (a10 <= 2 && 2 <= a10)) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || (((a10 <= 2 && 1 <= a10) && a1 <= 505272) && 221 <= a1)) || !(0 == \old(a10))) || ((((a10 == 0 && (\old(a10) == 1 || 0 == \old(a10))) && a1 <= 505272) && !(7 == a19)) && (!(\old(a10) == 1) || \old(a1) + 13 <= 0))) || (1 <= a10 && !(7 == a19))) || ((((((a19 == 8 && 14 == a4) && a10 == 0) && (\old(a10) == 1 || 0 == \old(a10))) && a12 == 0) && !(7 == a19)) && (!(\old(a10) == 1) || \old(a1) + 13 <= 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 83.8s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 32.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 453 SDtfs, 6446 SDslu, 564 SDs, 0 SdLazy, 15634 SolverSat, 2681 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 23.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5031occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 2273 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 494 PreInvPairs, 572 NumberOfFragments, 650 HoareAnnotationTreeSize, 494 FomulaSimplifications, 1259417 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 281753 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 47.0s InterpolantComputationTime, 4893 NumberOfCodeBlocks, 4893 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4877 ConstructedInterpolants, 0 QuantifiedInterpolants, 3970338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 4875/5205 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...