/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:32:31,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:32:31,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:32:31,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:32:31,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:32:31,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:32:31,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:32:31,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:32:31,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:32:31,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:32:31,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:32:31,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:32:31,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:32:31,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:32:31,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:32:31,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:32:31,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:32:31,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:32:31,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:32:31,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:32:31,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:32:31,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:32:31,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:32:31,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:32:31,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:32:31,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:32:31,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:32:31,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:32:31,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:32:31,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:32:31,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:32:31,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:32:31,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:32:31,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:32:31,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:32:31,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:32:31,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:32:31,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:32:31,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:32:31,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:32:31,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:32:31,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:32:31,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:32:31,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:32:31,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:32:31,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:32:31,664 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:32:31,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:32:31,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:32:31,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:32:31,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:32:31,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:32:31,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:32:31,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:32:31,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:32:31,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:32:31,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:32:31,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:32:31,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:32:31,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:32:31,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:32:31,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:32:31,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:32:31,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:31,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:32:31,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:32:31,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:32:31,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:32:31,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:32:31,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:32:31,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:32:31,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:32:32,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:32:32,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:32:32,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:32:32,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:32:32,113 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:32:32,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2020-10-26 20:32:32,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db36dbe60/3243347c48214b88bb9d02f5197d580b/FLAG7c47130ed [2020-10-26 20:32:32,920 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:32:32,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2020-10-26 20:32:32,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db36dbe60/3243347c48214b88bb9d02f5197d580b/FLAG7c47130ed [2020-10-26 20:32:33,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db36dbe60/3243347c48214b88bb9d02f5197d580b [2020-10-26 20:32:33,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:32:33,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:32:33,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:33,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:32:33,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:32:33,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:33,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4d9770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33, skipping insertion in model container [2020-10-26 20:32:33,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:33,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:32:33,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:32:33,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:33,680 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:32:33,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:33,894 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:32:33,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33 WrapperNode [2020-10-26 20:32:33,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:33,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:32:33,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:32:33,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:32:33,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:33,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:33,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:33,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:34,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:34,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:34,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... [2020-10-26 20:32:34,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:32:34,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:32:34,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:32:34,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:32:34,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:32:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:32:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:32:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:32:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:32:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:32:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:32:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:32:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:32:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:32:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:32:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:32:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:32:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:32:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:32:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:32:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:32:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:32:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:32:35,549 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:32:35,549 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:32:35,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:35 BoogieIcfgContainer [2020-10-26 20:32:35,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:32:35,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:32:35,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:32:35,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:32:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:32:33" (1/3) ... [2020-10-26 20:32:35,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57996c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:35, skipping insertion in model container [2020-10-26 20:32:35,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:33" (2/3) ... [2020-10-26 20:32:35,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57996c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:35, skipping insertion in model container [2020-10-26 20:32:35,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:35" (3/3) ... [2020-10-26 20:32:35,567 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label18.c [2020-10-26 20:32:35,585 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:32:35,598 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:32:35,630 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:32:35,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:32:35,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:32:35,710 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:32:35,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:32:35,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:32:35,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:32:35,710 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:32:35,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:32:35,765 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:32:35,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-26 20:32:35,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:35,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:35,782 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:35,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:35,789 INFO L82 PathProgramCache]: Analyzing trace with hash 956759619, now seen corresponding path program 1 times [2020-10-26 20:32:35,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:35,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381121847] [2020-10-26 20:32:35,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 20:32:38,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2261 [2020-10-26 20:32:38,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:32:38,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:38,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:32:38,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:32:39,619 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:39,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:39,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:32:39,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:39,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:39,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:39,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381121847] [2020-10-26 20:32:39,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:39,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:32:39,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22411967] [2020-10-26 20:32:39,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:32:39,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:39,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:32:39,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:39,849 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:32:40,062 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-26 20:32:40,260 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-26 20:32:40,477 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-26 20:32:40,694 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-26 20:32:41,107 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-10-26 20:32:41,586 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2020-10-26 20:32:42,316 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-10-26 20:32:43,129 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2020-10-26 20:32:43,655 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-26 20:32:45,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:45,094 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:32:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:45,100 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2020-10-26 20:32:45,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:45,114 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:32:45,114 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:32:45,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:32:45,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:32:45,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:32:45,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:32:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:32:45,192 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 107 [2020-10-26 20:32:45,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:45,193 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:32:45,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:32:45,193 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:32:45,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-26 20:32:45,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:45,197 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:45,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:32:45,198 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:45,199 INFO L82 PathProgramCache]: Analyzing trace with hash -662397851, now seen corresponding path program 1 times [2020-10-26 20:32:45,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:45,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017607400] [2020-10-26 20:32:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:45,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:45,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:45,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:47,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 20:32:47,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:47,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1968 [2020-10-26 20:32:47,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-26 20:32:47,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:47,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:47,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:47,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:47,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:47,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:32:47,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:47,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:47,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:47,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:47,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:47,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:47,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:47,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:47,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:47,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:47,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:47,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:47,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:32:47,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017607400] [2020-10-26 20:32:47,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:47,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:47,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678512821] [2020-10-26 20:32:47,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:32:47,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:47,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:32:47,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:47,542 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:32:47,674 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:49,075 INFO L93 Difference]: Finished difference Result 491 states and 703 transitions. [2020-10-26 20:32:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:32:49,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2020-10-26 20:32:49,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:49,089 INFO L225 Difference]: With dead ends: 491 [2020-10-26 20:32:49,089 INFO L226 Difference]: Without dead ends: 351 [2020-10-26 20:32:49,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-26 20:32:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2020-10-26 20:32:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-26 20:32:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-10-26 20:32:49,160 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 115 [2020-10-26 20:32:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:49,165 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-10-26 20:32:49,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:32:49,165 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-10-26 20:32:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-26 20:32:49,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:49,171 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:49,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:32:49,171 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:49,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:49,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1884297766, now seen corresponding path program 1 times [2020-10-26 20:32:49,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:49,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359409548] [2020-10-26 20:32:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:49,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-26 20:32:49,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 775 [2020-10-26 20:32:49,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 20:32:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:50,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:50,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:50,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:50,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:50,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:50,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:50,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:50,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:50,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:50,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:50,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:50,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:50,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:50,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:50,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:50,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:32:50,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359409548] [2020-10-26 20:32:50,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:50,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:50,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244905064] [2020-10-26 20:32:50,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:32:50,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:50,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:32:50,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:50,307 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-10-26 20:32:51,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:51,899 INFO L93 Difference]: Finished difference Result 908 states and 1277 transitions. [2020-10-26 20:32:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:32:51,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2020-10-26 20:32:51,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:51,906 INFO L225 Difference]: With dead ends: 908 [2020-10-26 20:32:51,906 INFO L226 Difference]: Without dead ends: 629 [2020-10-26 20:32:51,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:51,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-10-26 20:32:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 625. [2020-10-26 20:32:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-26 20:32:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 825 transitions. [2020-10-26 20:32:51,943 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 825 transitions. Word has length 118 [2020-10-26 20:32:51,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:51,944 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 825 transitions. [2020-10-26 20:32:51,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:32:51,944 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 825 transitions. [2020-10-26 20:32:51,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 20:32:51,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:51,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:51,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:32:51,948 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:51,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:51,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1731274056, now seen corresponding path program 1 times [2020-10-26 20:32:51,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:51,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196430609] [2020-10-26 20:32:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:51,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:52,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:54,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-26 20:32:54,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:54,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2749 [2020-10-26 20:32:54,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:32:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:32:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:54,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:54,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:54,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:54,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:54,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:54,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:54,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:54,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:54,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:54,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:54,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:32:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:54,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:54,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:54,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:54,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:54,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:32:54,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:55,002 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:32:55,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196430609] [2020-10-26 20:32:55,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:55,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:55,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941717905] [2020-10-26 20:32:55,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:55,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:55,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:55,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:55,006 INFO L87 Difference]: Start difference. First operand 625 states and 825 transitions. Second operand 8 states. [2020-10-26 20:32:55,385 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:58,150 INFO L93 Difference]: Finished difference Result 2580 states and 3567 transitions. [2020-10-26 20:32:58,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:58,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2020-10-26 20:32:58,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:58,170 INFO L225 Difference]: With dead ends: 2580 [2020-10-26 20:32:58,170 INFO L226 Difference]: Without dead ends: 2021 [2020-10-26 20:32:58,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:32:58,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2020-10-26 20:32:58,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1330. [2020-10-26 20:32:58,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1330 states. [2020-10-26 20:32:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1698 transitions. [2020-10-26 20:32:58,259 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1698 transitions. Word has length 126 [2020-10-26 20:32:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:58,259 INFO L481 AbstractCegarLoop]: Abstraction has 1330 states and 1698 transitions. [2020-10-26 20:32:58,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1698 transitions. [2020-10-26 20:32:58,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-26 20:32:58,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:58,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:58,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:32:58,265 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:58,265 INFO L82 PathProgramCache]: Analyzing trace with hash -214389088, now seen corresponding path program 1 times [2020-10-26 20:32:58,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:58,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474969209] [2020-10-26 20:32:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:58,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:58,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:59,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-26 20:33:00,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2356 [2020-10-26 20:33:00,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:33:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:00,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:00,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:00,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:00,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:00,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:00,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:00,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:33:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:00,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:33:00,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:33:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:01,042 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:33:01,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474969209] [2020-10-26 20:33:01,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:01,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:01,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015208128] [2020-10-26 20:33:01,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:01,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:01,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:01,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:01,044 INFO L87 Difference]: Start difference. First operand 1330 states and 1698 transitions. Second operand 8 states. [2020-10-26 20:33:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:02,686 INFO L93 Difference]: Finished difference Result 2765 states and 3574 transitions. [2020-10-26 20:33:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:33:02,687 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-10-26 20:33:02,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:02,700 INFO L225 Difference]: With dead ends: 2765 [2020-10-26 20:33:02,700 INFO L226 Difference]: Without dead ends: 1501 [2020-10-26 20:33:02,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2020-10-26 20:33:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1469. [2020-10-26 20:33:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2020-10-26 20:33:02,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1803 transitions. [2020-10-26 20:33:02,777 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1803 transitions. Word has length 138 [2020-10-26 20:33:02,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:02,777 INFO L481 AbstractCegarLoop]: Abstraction has 1469 states and 1803 transitions. [2020-10-26 20:33:02,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:02,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1803 transitions. [2020-10-26 20:33:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-26 20:33:02,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:02,783 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:02,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:33:02,784 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:02,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1912870138, now seen corresponding path program 1 times [2020-10-26 20:33:02,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:02,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712296265] [2020-10-26 20:33:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-26 20:33:05,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2639 [2020-10-26 20:33:05,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:33:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,628 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:05,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:05,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:33:05,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:05,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:05,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:05,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:05,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:05,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:05,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:33:05,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:05,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:05,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:33:05,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:05,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:05,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:33:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:05,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:33:05,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:05,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:33:05,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712296265] [2020-10-26 20:33:05,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:05,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:05,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393238922] [2020-10-26 20:33:05,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:05,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:05,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:05,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:05,995 INFO L87 Difference]: Start difference. First operand 1469 states and 1803 transitions. Second operand 8 states. [2020-10-26 20:33:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:07,682 INFO L93 Difference]: Finished difference Result 3595 states and 4490 transitions. [2020-10-26 20:33:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:07,683 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2020-10-26 20:33:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:07,693 INFO L225 Difference]: With dead ends: 3595 [2020-10-26 20:33:07,694 INFO L226 Difference]: Without dead ends: 1904 [2020-10-26 20:33:07,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2020-10-26 20:33:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1898. [2020-10-26 20:33:07,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1898 states. [2020-10-26 20:33:07,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2178 transitions. [2020-10-26 20:33:07,762 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2178 transitions. Word has length 150 [2020-10-26 20:33:07,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:07,762 INFO L481 AbstractCegarLoop]: Abstraction has 1898 states and 2178 transitions. [2020-10-26 20:33:07,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:07,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2178 transitions. [2020-10-26 20:33:07,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-26 20:33:07,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:07,768 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:07,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:33:07,769 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:07,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:07,769 INFO L82 PathProgramCache]: Analyzing trace with hash 500684899, now seen corresponding path program 1 times [2020-10-26 20:33:07,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:07,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304247126] [2020-10-26 20:33:07,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:07,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:10,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:10,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-26 20:33:10,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2723 [2020-10-26 20:33:10,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:10,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:10,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:10,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:10,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:10,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:10,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:33:10,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:10,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:10,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:10,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:10,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:10,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:10,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:10,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:10,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:10,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:10,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:33:10,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:10,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:10,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:10,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:10,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:10,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:33:10,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:33:10,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:10,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:33:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:10,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:10,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:10,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:10,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:10,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:10,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:10,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:33:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:10,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:10,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:10,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:10,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:10,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:10,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:10,858 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:33:10,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304247126] [2020-10-26 20:33:10,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:10,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:10,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670518858] [2020-10-26 20:33:10,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:10,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:10,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:10,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:10,861 INFO L87 Difference]: Start difference. First operand 1898 states and 2178 transitions. Second operand 7 states. [2020-10-26 20:33:12,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:12,231 INFO L93 Difference]: Finished difference Result 5251 states and 6119 transitions. [2020-10-26 20:33:12,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:33:12,236 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2020-10-26 20:33:12,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:12,254 INFO L225 Difference]: With dead ends: 5251 [2020-10-26 20:33:12,255 INFO L226 Difference]: Without dead ends: 3141 [2020-10-26 20:33:12,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:33:12,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2020-10-26 20:33:12,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 3002. [2020-10-26 20:33:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3002 states. [2020-10-26 20:33:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 3425 transitions. [2020-10-26 20:33:12,365 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 3425 transitions. Word has length 163 [2020-10-26 20:33:12,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:12,365 INFO L481 AbstractCegarLoop]: Abstraction has 3002 states and 3425 transitions. [2020-10-26 20:33:12,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 3425 transitions. [2020-10-26 20:33:12,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 20:33:12,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:12,374 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:12,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:33:12,374 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:12,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:12,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1264774985, now seen corresponding path program 1 times [2020-10-26 20:33:12,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:12,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028967801] [2020-10-26 20:33:12,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:14,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-26 20:33:16,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4336 [2020-10-26 20:33:16,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:33:16,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:16,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:16,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:16,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:33:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:17,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:33:17,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:17,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:33:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:17,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:33:17,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:17,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:33:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:17,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:17,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:17,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 63 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:33:17,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028967801] [2020-10-26 20:33:17,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:17,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:17,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615324873] [2020-10-26 20:33:17,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:17,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:17,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:17,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:17,121 INFO L87 Difference]: Start difference. First operand 3002 states and 3425 transitions. Second operand 8 states. [2020-10-26 20:33:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:19,520 INFO L93 Difference]: Finished difference Result 7311 states and 8448 transitions. [2020-10-26 20:33:19,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:33:19,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-10-26 20:33:19,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:19,546 INFO L225 Difference]: With dead ends: 7311 [2020-10-26 20:33:19,547 INFO L226 Difference]: Without dead ends: 4375 [2020-10-26 20:33:19,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:33:19,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4375 states. [2020-10-26 20:33:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4375 to 4368. [2020-10-26 20:33:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4368 states. [2020-10-26 20:33:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 4855 transitions. [2020-10-26 20:33:19,682 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 4855 transitions. Word has length 169 [2020-10-26 20:33:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:19,684 INFO L481 AbstractCegarLoop]: Abstraction has 4368 states and 4855 transitions. [2020-10-26 20:33:19,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 4855 transitions. [2020-10-26 20:33:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-26 20:33:19,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:19,694 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:19,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:33:19,695 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:19,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:19,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1579763401, now seen corresponding path program 1 times [2020-10-26 20:33:19,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:19,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143138754] [2020-10-26 20:33:19,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:19,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:20,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:22,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-26 20:33:22,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:22,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2586 [2020-10-26 20:33:22,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:33:22,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:22,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:22,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:22,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:22,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:22,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:22,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:22,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:22,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:22,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:22,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:22,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:22,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:22,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 20:33:22,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:22,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:22,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:22,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:33:22,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:22,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:22,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:22,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:22,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:22,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:22,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:22,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:33:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:22,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:22,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:22,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:22,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 80 proven. 27 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:33:22,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143138754] [2020-10-26 20:33:22,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:22,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:22,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141431582] [2020-10-26 20:33:22,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:22,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:22,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:22,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:22,849 INFO L87 Difference]: Start difference. First operand 4368 states and 4855 transitions. Second operand 8 states. [2020-10-26 20:33:23,614 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:24,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:24,719 INFO L93 Difference]: Finished difference Result 9099 states and 10116 transitions. [2020-10-26 20:33:24,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:33:24,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-10-26 20:33:24,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:24,743 INFO L225 Difference]: With dead ends: 9099 [2020-10-26 20:33:24,744 INFO L226 Difference]: Without dead ends: 4646 [2020-10-26 20:33:24,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:33:24,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4646 states. [2020-10-26 20:33:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4646 to 4501. [2020-10-26 20:33:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4501 states. [2020-10-26 20:33:24,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 4971 transitions. [2020-10-26 20:33:24,878 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 4971 transitions. Word has length 183 [2020-10-26 20:33:24,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:24,879 INFO L481 AbstractCegarLoop]: Abstraction has 4501 states and 4971 transitions. [2020-10-26 20:33:24,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 4971 transitions. [2020-10-26 20:33:24,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-26 20:33:24,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:24,890 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:24,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:33:24,891 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:24,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:24,891 INFO L82 PathProgramCache]: Analyzing trace with hash 77507096, now seen corresponding path program 1 times [2020-10-26 20:33:24,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:24,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798100256] [2020-10-26 20:33:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:25,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:25,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:26,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-26 20:33:26,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1643 [2020-10-26 20:33:26,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:33:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:33:26,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:26,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:26,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:26,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:26,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:26,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:26,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:26,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:26,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:26,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:26,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:33:26,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:26,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:33:26,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:33:26,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:26,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:33:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:26,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:26,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:26,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:26,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:26,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:26,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:26,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:33:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:26,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:26,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:26,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:26,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:26,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:26,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:26,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:26,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:26,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 134 proven. 14 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-26 20:33:26,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798100256] [2020-10-26 20:33:26,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:26,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:26,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886151959] [2020-10-26 20:33:26,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:26,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:26,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:26,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:26,963 INFO L87 Difference]: Start difference. First operand 4501 states and 4971 transitions. Second operand 7 states. [2020-10-26 20:33:27,473 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:33:28,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:28,777 INFO L93 Difference]: Finished difference Result 9083 states and 10037 transitions. [2020-10-26 20:33:28,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:28,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 216 [2020-10-26 20:33:28,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:28,800 INFO L225 Difference]: With dead ends: 9083 [2020-10-26 20:33:28,801 INFO L226 Difference]: Without dead ends: 4648 [2020-10-26 20:33:28,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:28,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2020-10-26 20:33:28,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 4507. [2020-10-26 20:33:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4507 states. [2020-10-26 20:33:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4507 states to 4507 states and 4851 transitions. [2020-10-26 20:33:28,927 INFO L78 Accepts]: Start accepts. Automaton has 4507 states and 4851 transitions. Word has length 216 [2020-10-26 20:33:28,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:28,928 INFO L481 AbstractCegarLoop]: Abstraction has 4507 states and 4851 transitions. [2020-10-26 20:33:28,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:28,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4507 states and 4851 transitions. [2020-10-26 20:33:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-26 20:33:28,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:28,940 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:28,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:33:28,941 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:28,945 INFO L82 PathProgramCache]: Analyzing trace with hash 789382245, now seen corresponding path program 1 times [2020-10-26 20:33:28,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:28,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216648551] [2020-10-26 20:33:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:33,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-26 20:33:33,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:33,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4133 [2020-10-26 20:33:33,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:33,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:33,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:33:33,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:33:33,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:33,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:33,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:33,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:33,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:33,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:33,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:33,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:33,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:33,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:33,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:33,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:33,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:33,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:33,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:33,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:33,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:33:33,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:33:33,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:33,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:33,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:33,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:33:33,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:33:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:33,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:33,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:33,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:33,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:33:33,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:33,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:33,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 20:33:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:33,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:33,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-26 20:33:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:33,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:33,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:33,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:33,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 166 proven. 30 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-26 20:33:33,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216648551] [2020-10-26 20:33:33,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:33,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:33,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765857117] [2020-10-26 20:33:33,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:33,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:33,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:33,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:33,474 INFO L87 Difference]: Start difference. First operand 4507 states and 4851 transitions. Second operand 7 states. [2020-10-26 20:33:33,963 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:34,085 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:33:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:35,335 INFO L93 Difference]: Finished difference Result 9242 states and 9977 transitions. [2020-10-26 20:33:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:35,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-26 20:33:35,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:35,367 INFO L225 Difference]: With dead ends: 9242 [2020-10-26 20:33:35,367 INFO L226 Difference]: Without dead ends: 4527 [2020-10-26 20:33:35,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2020-10-26 20:33:35,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4366. [2020-10-26 20:33:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4366 states. [2020-10-26 20:33:35,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 4668 transitions. [2020-10-26 20:33:35,494 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 4668 transitions. Word has length 235 [2020-10-26 20:33:35,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:35,494 INFO L481 AbstractCegarLoop]: Abstraction has 4366 states and 4668 transitions. [2020-10-26 20:33:35,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 4668 transitions. [2020-10-26 20:33:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-26 20:33:35,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:35,506 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:35,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:33:35,507 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:35,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:35,507 INFO L82 PathProgramCache]: Analyzing trace with hash -410831535, now seen corresponding path program 1 times [2020-10-26 20:33:35,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:35,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076613591] [2020-10-26 20:33:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:35,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:35,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1375 [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:33:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:37,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:37,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:37,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:37,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:37,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:37,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:37,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:37,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:37,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:37,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:37,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:37,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:37,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:37,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:37,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:37,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:37,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-26 20:33:37,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:37,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:37,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:37,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:37,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-26 20:33:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:37,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:37,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:37,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:37,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:33:37,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:33:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 20:33:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:37,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:37,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:37,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:37,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:37,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:33:37,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:37,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:37,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:37,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:37,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:37,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:37,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:33:37,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:37,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 177 proven. 14 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-26 20:33:37,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076613591] [2020-10-26 20:33:37,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:37,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:37,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059271119] [2020-10-26 20:33:37,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:37,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:37,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:37,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:37,328 INFO L87 Difference]: Start difference. First operand 4366 states and 4668 transitions. Second operand 7 states. [2020-10-26 20:33:37,464 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:38,065 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:33:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:38,998 INFO L93 Difference]: Finished difference Result 8412 states and 8984 transitions. [2020-10-26 20:33:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:38,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2020-10-26 20:33:38,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:39,012 INFO L225 Difference]: With dead ends: 8412 [2020-10-26 20:33:39,012 INFO L226 Difference]: Without dead ends: 4388 [2020-10-26 20:33:39,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:39,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2020-10-26 20:33:39,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 4374. [2020-10-26 20:33:39,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4374 states. [2020-10-26 20:33:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 4664 transitions. [2020-10-26 20:33:39,125 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 4664 transitions. Word has length 241 [2020-10-26 20:33:39,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:39,126 INFO L481 AbstractCegarLoop]: Abstraction has 4374 states and 4664 transitions. [2020-10-26 20:33:39,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 4664 transitions. [2020-10-26 20:33:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-26 20:33:39,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:39,138 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:39,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:33:39,138 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:39,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:39,139 INFO L82 PathProgramCache]: Analyzing trace with hash -580610987, now seen corresponding path program 1 times [2020-10-26 20:33:39,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:39,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99872040] [2020-10-26 20:33:39,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:39,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1401 [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:33:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:33:40,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:40,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:40,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:40,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:40,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:40,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:40,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:40,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:40,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:40,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:40,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:40,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:33:40,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:40,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:40,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 20:33:40,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:40,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:40,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:33:40,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:40,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:33:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:40,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:40,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:40,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:40,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:40,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:33:40,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:40,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:40,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:33:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:40,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:40,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:40,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:40,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:40,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:33:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:40,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:40,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:40,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:40,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 175 proven. 41 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-26 20:33:40,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [99872040] [2020-10-26 20:33:40,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:40,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:40,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938006330] [2020-10-26 20:33:40,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:40,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:40,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:40,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:40,984 INFO L87 Difference]: Start difference. First operand 4374 states and 4664 transitions. Second operand 7 states. [2020-10-26 20:33:42,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:42,574 INFO L93 Difference]: Finished difference Result 8563 states and 9132 transitions. [2020-10-26 20:33:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:42,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 247 [2020-10-26 20:33:42,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:42,590 INFO L225 Difference]: With dead ends: 8563 [2020-10-26 20:33:42,590 INFO L226 Difference]: Without dead ends: 4531 [2020-10-26 20:33:42,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:33:42,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4531 states. [2020-10-26 20:33:42,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4531 to 3957. [2020-10-26 20:33:42,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3957 states. [2020-10-26 20:33:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3957 states to 3957 states and 4156 transitions. [2020-10-26 20:33:42,686 INFO L78 Accepts]: Start accepts. Automaton has 3957 states and 4156 transitions. Word has length 247 [2020-10-26 20:33:42,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:42,687 INFO L481 AbstractCegarLoop]: Abstraction has 3957 states and 4156 transitions. [2020-10-26 20:33:42,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:42,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3957 states and 4156 transitions. [2020-10-26 20:33:42,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-26 20:33:42,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:42,697 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:42,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:33:42,698 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:42,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:42,698 INFO L82 PathProgramCache]: Analyzing trace with hash 98121802, now seen corresponding path program 1 times [2020-10-26 20:33:42,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:42,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856973330] [2020-10-26 20:33:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:42,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:42,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:43,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-26 20:33:43,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:43,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1140 [2020-10-26 20:33:43,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:33:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:33:43,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:44,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:44,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:33:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:33:44,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:33:44,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:33:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:33:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:44,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:44,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:44,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:44,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:44,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:33:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:44,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:44,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:44,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 187 proven. 14 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-26 20:33:44,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856973330] [2020-10-26 20:33:44,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:44,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:44,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471215057] [2020-10-26 20:33:44,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:44,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:44,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:44,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:44,269 INFO L87 Difference]: Start difference. First operand 3957 states and 4156 transitions. Second operand 7 states. [2020-10-26 20:33:46,014 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:33:46,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:46,035 INFO L93 Difference]: Finished difference Result 6905 states and 7273 transitions. [2020-10-26 20:33:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:46,036 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 258 [2020-10-26 20:33:46,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:46,047 INFO L225 Difference]: With dead ends: 6905 [2020-10-26 20:33:46,048 INFO L226 Difference]: Without dead ends: 3985 [2020-10-26 20:33:46,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3985 states. [2020-10-26 20:33:46,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3985 to 3407. [2020-10-26 20:33:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3407 states. [2020-10-26 20:33:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3407 states to 3407 states and 3585 transitions. [2020-10-26 20:33:46,136 INFO L78 Accepts]: Start accepts. Automaton has 3407 states and 3585 transitions. Word has length 258 [2020-10-26 20:33:46,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:46,136 INFO L481 AbstractCegarLoop]: Abstraction has 3407 states and 3585 transitions. [2020-10-26 20:33:46,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3407 states and 3585 transitions. [2020-10-26 20:33:46,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-26 20:33:46,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:46,145 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:46,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:33:46,146 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:46,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:46,146 INFO L82 PathProgramCache]: Analyzing trace with hash -295435511, now seen corresponding path program 1 times [2020-10-26 20:33:46,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:46,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064734700] [2020-10-26 20:33:46,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-26 20:33:46,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-26 20:33:46,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-26 20:33:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-26 20:33:46,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:46,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:46,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:46,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:46,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:46,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:46,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:46,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:46,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:46,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:46,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:46,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:46,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:46,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:46,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:46,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:46,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:33:46,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:46,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:46,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:46,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:46,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:33:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:46,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:46,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:33:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:33:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-26 20:33:47,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064734700] [2020-10-26 20:33:47,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:47,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:33:47,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535405455] [2020-10-26 20:33:47,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:33:47,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:47,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:33:47,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:33:47,059 INFO L87 Difference]: Start difference. First operand 3407 states and 3585 transitions. Second operand 5 states. [2020-10-26 20:33:48,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:48,248 INFO L93 Difference]: Finished difference Result 3422 states and 3599 transitions. [2020-10-26 20:33:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:33:48,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-10-26 20:33:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:48,265 INFO L225 Difference]: With dead ends: 3422 [2020-10-26 20:33:48,265 INFO L226 Difference]: Without dead ends: 3419 [2020-10-26 20:33:48,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:48,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2020-10-26 20:33:48,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2994. [2020-10-26 20:33:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2994 states. [2020-10-26 20:33:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 3143 transitions. [2020-10-26 20:33:48,335 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 3143 transitions. Word has length 269 [2020-10-26 20:33:48,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:48,336 INFO L481 AbstractCegarLoop]: Abstraction has 2994 states and 3143 transitions. [2020-10-26 20:33:48,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:33:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 3143 transitions. [2020-10-26 20:33:48,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-26 20:33:48,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:48,346 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-26 20:33:48,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:33:48,346 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:48,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1870329949, now seen corresponding path program 1 times [2020-10-26 20:33:48,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:48,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327854993] [2020-10-26 20:33:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-26 20:33:48,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:48,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-26 20:33:48,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:33:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-26 20:33:48,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:49,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:49,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:49,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:49,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:49,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:49,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:49,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:49,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:49,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:49,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:49,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:49,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:33:49,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:49,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:49,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:49,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:49,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:49,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:33:49,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:49,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:49,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:49,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:49,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:49,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:49,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:49,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:49,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:49,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:49,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:49,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:49,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:49,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 20:33:49,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-26 20:33:49,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327854993] [2020-10-26 20:33:49,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:49,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:33:49,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788931262] [2020-10-26 20:33:49,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:33:49,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:49,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:33:49,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:33:49,320 INFO L87 Difference]: Start difference. First operand 2994 states and 3143 transitions. Second operand 5 states. [2020-10-26 20:33:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:50,526 INFO L93 Difference]: Finished difference Result 5228 states and 5512 transitions. [2020-10-26 20:33:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:33:50,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-10-26 20:33:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:50,527 INFO L225 Difference]: With dead ends: 5228 [2020-10-26 20:33:50,527 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:33:50,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:50,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:33:50,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:33:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:33:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:33:50,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 307 [2020-10-26 20:33:50,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:50,538 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:33:50,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:33:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:33:50,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:33:50,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:33:50,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:33:51,988 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 248 [2020-10-26 20:33:52,291 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 238 [2020-10-26 20:33:52,619 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 42 [2020-10-26 20:33:55,896 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 306 DAG size of output: 101 [2020-10-26 20:33:57,515 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 246 DAG size of output: 79 [2020-10-26 20:33:59,176 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 236 DAG size of output: 79 [2020-10-26 20:34:00,030 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 66 [2020-10-26 20:34:00,035 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:34:00,036 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:34:00,036 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:34:00,036 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:34:00,036 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:00,037 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:34:00,037 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:00,037 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,037 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,037 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:34:00,038 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,039 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,040 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:34:00,041 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,042 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:34:00,043 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:34:00,044 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L270 CegarLoopResult]: At program point L478(line 478) the Hoare annotation is: (let ((.cse6 (= 15 |old(~a8~0)|))) (let ((.cse4 (= |old(~a7~0)| 1)) (.cse3 (not (= 4 |old(~a16~0)|))) (.cse9 (not (= |old(~a17~0)| 1))) (.cse11 (not (= |old(~a21~0)| 1))) (.cse5 (not (<= |old(~a20~0)| 1))) (.cse10 (not .cse6)) (.cse7 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse13 (not (<= |old(~a16~0)| 4))) (.cse2 (not (<= |old(~a17~0)| 0))) (.cse0 (not (<= |old(~a21~0)| 1))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse8 (not (= 5 |old(~a16~0)|))) (.cse12 (not (= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 1 |old(~a20~0)|)) .cse3 .cse4 .cse5) (or .cse6 (not (= |old(~a20~0)| 1))) (or .cse0 .cse7 .cse1 .cse8 (not (<= |old(~a20~0)| 0))) (or .cse9 .cse10 .cse11 .cse3 .cse4) (not (<= |old(~a8~0)| 13)) (or .cse0 .cse1 .cse6 .cse12 .cse3) (or .cse0 .cse1 .cse6 .cse13 .cse2) (or .cse9 .cse6 .cse11 .cse12) (or (and (or .cse0 .cse1 .cse8) (or .cse0 .cse1 (not (= 6 |old(~a16~0)|)) .cse5)) .cse10) (or .cse0 .cse7 .cse1 .cse13 .cse2) (or .cse0 .cse1 .cse6 .cse8 .cse12)))) [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L478-1(line 478) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:34:00,045 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,046 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,047 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:34:00,048 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:34:00,049 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:34:00,050 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:34:00,050 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:34:00,050 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:34:00,050 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:34:00,050 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:34:00,050 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,050 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse2 (= 15 |old(~a8~0)|)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse6 (= ~a16~0 |old(~a16~0)|)) (.cse8 (<= ~a21~0 1)) (.cse9 (<= 1 ~a21~0)) (.cse12 (= ~a8~0 15))) (let ((.cse21 (= 5 ~a16~0)) (.cse19 (= ~a21~0 |old(~a21~0)|)) (.cse20 (not .cse12)) (.cse22 (= ~a7~0 0)) (.cse25 (not (= |old(~a17~0)| 1))) (.cse26 (not (= |old(~a21~0)| 1))) (.cse16 (= |old(~a7~0)| 1)) (.cse24 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse10 (not (<= |old(~a16~0)| 4))) (.cse11 (not (<= |old(~a17~0)| 0))) (.cse27 (and .cse3 .cse4 .cse5 .cse6 .cse12 .cse8 .cse9)) (.cse18 (not (= 5 |old(~a16~0)|))) (.cse17 (not (<= |old(~a20~0)| 1))) (.cse14 (not .cse2)) (.cse7 (= ~a8~0 |old(~a8~0)|)) (.cse13 (= ~a16~0 4)) (.cse0 (not (<= |old(~a21~0)| 1))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse23 (not (= |old(~a7~0)| 0))) (.cse15 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) .cse10 .cse11) (or .cse0 (and .cse3 .cse4 .cse5 .cse12 .cse8 .cse13 .cse9) .cse1 .cse11 (not (<= 1 |old(~a20~0)|)) .cse14 .cse15 .cse16 .cse17) (or .cse0 .cse1 .cse2 .cse18 (and .cse4 .cse3 .cse19 .cse5 .cse20 .cse7 .cse21 .cse22) .cse23) (or (and .cse3 .cse4 .cse5 .cse19 .cse6 .cse7) (and (or .cse2 (not (= |old(~a20~0)| 1))) (not (<= |old(~a8~0)| 13)))) (or (and .cse3 .cse4 .cse5 .cse7 .cse8 .cse9 .cse21) .cse0 .cse24 .cse1 .cse18 (not (<= |old(~a20~0)| 0))) (or .cse25 .cse2 (and .cse3 .cse4 .cse19 .cse5 .cse20 .cse6 .cse7 .cse22) .cse26 .cse23) (or .cse25 (and .cse3 .cse4 (= ~a21~0 1) .cse5 .cse12 .cse13) .cse14 .cse26 .cse15 .cse16) (or .cse27 .cse0 .cse24 .cse1 .cse10 .cse11 .cse14) (or .cse27 (and (or .cse0 .cse1 .cse18) (or .cse0 .cse1 (not (= 6 |old(~a16~0)|)) .cse17)) .cse14) (or (and .cse4 .cse3 .cse5 .cse7 .cse8 .cse13 .cse9) .cse0 .cse1 .cse2 .cse23 .cse15)))) [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:34:00,051 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,052 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:34:00,053 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:34:00,054 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:00,055 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (= ~a12~0 8) (= ~a8~0 15) (<= ~a21~0 1) (<= ~a20~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:34:00,056 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:34:00,056 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:00,056 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:34:00,056 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:00,056 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse7 (= ~a8~0 15))) (let ((.cse4 (= ~a20~0 ~a17~0)) (.cse3 (<= ~a20~0 0)) (.cse5 (<= ~a16~0 4)) (.cse6 (<= ~a17~0 0)) (.cse0 (= ~a16~0 6)) (.cse13 (= ~a20~0 1)) (.cse8 (= 5 ~a16~0)) (.cse9 (not .cse7)) (.cse10 (= 15 |old(~a8~0)|)) (.cse12 (= ~a7~0 0)) (.cse11 (= ~a16~0 4)) (.cse1 (<= ~a21~0 1)) (.cse2 (<= 1 ~a21~0)) (.cse14 (not (= ~a7~0 1))) (.cse15 (= ~a17~0 1))) (or (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) (and .cse0 (= ~a8~0 |old(~a8~0)|) .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse1 .cse2) (and .cse7 .cse1 .cse2 .cse8) (and .cse9 .cse10 .cse11 .cse1 .cse2 .cse12) (and .cse9 .cse13) (not (<= 1 |old(~a20~0)|)) (and .cse4 .cse1 .cse2 .cse8 .cse3) (not (<= |old(~a20~0)| 1)) (not (= |old(~a17~0)| 1)) (and .cse9 .cse5 .cse6 .cse1 .cse2) (and (<= 1 ~a20~0) .cse6 .cse11 .cse1 (<= ~a20~0 1) .cse2 .cse14) (and .cse0 .cse13 .cse1 .cse2) (not (<= 1 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 .cse10 .cse1 .cse2 .cse8 .cse12) (and .cse9 .cse10 .cse1 .cse2 .cse12 .cse15) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse7 .cse11 .cse1 .cse2 .cse14 .cse15) (<= ~a8~0 13)))) [2020-10-26 20:34:00,056 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:34:00,057 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:34:00,057 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse7 (= ~a8~0 15))) (let ((.cse4 (= ~a20~0 ~a17~0)) (.cse3 (<= ~a20~0 0)) (.cse5 (<= ~a16~0 4)) (.cse6 (<= ~a17~0 0)) (.cse0 (= ~a16~0 6)) (.cse13 (= ~a20~0 1)) (.cse8 (= 5 ~a16~0)) (.cse9 (not .cse7)) (.cse10 (= 15 |old(~a8~0)|)) (.cse12 (= ~a7~0 0)) (.cse11 (= ~a16~0 4)) (.cse1 (<= ~a21~0 1)) (.cse2 (<= 1 ~a21~0)) (.cse14 (not (= ~a7~0 1))) (.cse15 (= ~a17~0 1))) (or (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) (and .cse0 (= ~a8~0 |old(~a8~0)|) .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse1 .cse2) (and .cse7 .cse1 .cse2 .cse8) (and .cse9 .cse10 .cse11 .cse1 .cse2 .cse12) (and .cse9 .cse13) (not (<= 1 |old(~a20~0)|)) (and .cse4 .cse1 .cse2 .cse8 .cse3) (not (<= |old(~a20~0)| 1)) (not (= |old(~a17~0)| 1)) (and .cse9 .cse5 .cse6 .cse1 .cse2) (and (<= 1 ~a20~0) .cse6 .cse11 .cse1 (<= ~a20~0 1) .cse2 .cse14) (and .cse0 .cse13 .cse1 .cse2) (not (<= 1 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 .cse10 .cse1 .cse2 .cse8 .cse12) (and .cse9 .cse10 .cse1 .cse2 .cse12 .cse15) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse7 .cse11 .cse1 .cse2 .cse14 .cse15) (<= ~a8~0 13)))) [2020-10-26 20:34:00,057 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:00,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:34:00 BoogieIcfgContainer [2020-10-26 20:34:00,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:34:00,093 INFO L168 Benchmark]: Toolchain (without parser) took 87002.17 ms. Allocated memory was 154.1 MB in the beginning and 1.1 GB in the end (delta: 911.2 MB). Free memory was 134.0 MB in the beginning and 760.7 MB in the end (delta: -626.7 MB). Peak memory consumption was 641.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:00,094 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 154.1 MB. Free memory was 126.4 MB in the beginning and 126.2 MB in the end (delta: 135.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:34:00,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.52 ms. Allocated memory is still 154.1 MB. Free memory was 133.2 MB in the beginning and 126.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:00,095 INFO L168 Benchmark]: Boogie Preprocessor took 153.39 ms. Allocated memory is still 154.1 MB. Free memory was 126.8 MB in the beginning and 122.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:00,096 INFO L168 Benchmark]: RCFGBuilder took 1502.41 ms. Allocated memory is still 154.1 MB. Free memory was 122.0 MB in the beginning and 72.6 MB in the end (delta: 49.5 MB). Peak memory consumption was 51.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:00,099 INFO L168 Benchmark]: TraceAbstraction took 84535.49 ms. Allocated memory was 154.1 MB in the beginning and 1.1 GB in the end (delta: 911.2 MB). Free memory was 72.1 MB in the beginning and 760.7 MB in the end (delta: -688.6 MB). Peak memory consumption was 579.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:00,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 154.1 MB. Free memory was 126.4 MB in the beginning and 126.2 MB in the end (delta: 135.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 794.52 ms. Allocated memory is still 154.1 MB. Free memory was 133.2 MB in the beginning and 126.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.39 ms. Allocated memory is still 154.1 MB. Free memory was 126.8 MB in the beginning and 122.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1502.41 ms. Allocated memory is still 154.1 MB. Free memory was 122.0 MB in the beginning and 72.6 MB in the end (delta: 49.5 MB). Peak memory consumption was 51.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 84535.49 ms. Allocated memory was 154.1 MB in the beginning and 1.1 GB in the end (delta: 911.2 MB). Free memory was 72.1 MB in the beginning and 760.7 MB in the end (delta: -688.6 MB). Peak memory consumption was 579.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(\old(a8) <= 15) || !(\old(a21) <= 1)) || ((((a16 == 6 && a8 == \old(a8)) && a21 <= 1) && 1 <= a21) && a20 <= 0)) || ((((a20 == a17 && a16 <= 4) && a17 <= 0) && a21 <= 1) && 1 <= a21)) || (((a8 == 15 && a21 <= 1) && 1 <= a21) && 5 == a16)) || (((((!(a8 == 15) && 15 == \old(a8)) && a16 == 4) && a21 <= 1) && 1 <= a21) && a7 == 0)) || (!(a8 == 15) && a20 == 1)) || !(1 <= \old(a20))) || ((((a20 == a17 && a21 <= 1) && 1 <= a21) && 5 == a16) && a20 <= 0)) || !(\old(a20) <= 1)) || !(\old(a17) == 1)) || ((((!(a8 == 15) && a16 <= 4) && a17 <= 0) && a21 <= 1) && 1 <= a21)) || ((((((1 <= a20 && a17 <= 0) && a16 == 4) && a21 <= 1) && a20 <= 1) && 1 <= a21) && !(a7 == 1))) || (((a16 == 6 && a20 == 1) && a21 <= 1) && 1 <= a21)) || !(1 <= \old(a21))) || !(15 <= \old(a8))) || (((((!(a8 == 15) && 15 == \old(a8)) && a21 <= 1) && 1 <= a21) && 5 == a16) && a7 == 0)) || (((((!(a8 == 15) && 15 == \old(a8)) && a21 <= 1) && 1 <= a21) && a7 == 0) && a17 == 1)) || !(5 == \old(a16))) || !(\old(a7) == 0)) || !(a12 == 8)) || (((((a8 == 15 && a16 == 4) && a21 <= 1) && 1 <= a21) && !(a7 == 1)) && a17 == 1)) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 74.8s, OverallIterations: 16, TraceHistogramMax: 6, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 410 SDtfs, 7273 SDslu, 570 SDs, 0 SdLazy, 12904 SolverSat, 1653 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 184 SyntacticMatches, 3 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4507occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 2923 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 584 PreInvPairs, 652 NumberOfFragments, 1324 HoareAnnotationTreeSize, 584 FomulaSimplifications, 13631 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 15473 FormulaSimplificationTreeSizeReductionInter, 7.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 39.4s InterpolantComputationTime, 3042 NumberOfCodeBlocks, 3042 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3026 ConstructedInterpolants, 0 QuantifiedInterpolants, 1966480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 2422/2650 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...