/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:33:29,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:33:29,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:33:29,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:33:29,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:33:29,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:33:29,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:33:29,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:33:29,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:33:29,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:33:29,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:33:29,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:33:29,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:33:29,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:33:29,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:33:29,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:33:29,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:33:29,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:33:29,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:33:29,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:33:29,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:33:29,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:33:29,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:33:29,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:33:29,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:33:29,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:33:29,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:33:29,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:33:29,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:33:29,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:33:29,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:33:29,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:33:29,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:33:29,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:33:29,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:33:29,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:33:29,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:33:29,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:33:29,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:33:29,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:33:29,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:33:29,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 15:33:29,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:33:29,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:33:29,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:33:29,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:33:29,555 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:33:29,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:33:29,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:33:29,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:33:29,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:33:29,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:33:29,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:33:29,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:33:29,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:33:29,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:33:29,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:33:29,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:33:29,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:33:29,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:33:29,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:33:29,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:33:29,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:33:29,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:33:29,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:33:29,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:33:29,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:33:29,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:33:29,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:33:29,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:33:29,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:33:29,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:33:30,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:33:30,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:33:30,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:33:30,037 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:33:30,038 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:33:30,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-10-27 15:33:30,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddb9bd2ea/54f57a83d05e462cbf25467f494dd284/FLAGd6c554c8a [2020-10-27 15:33:30,828 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:33:30,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-10-27 15:33:30,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddb9bd2ea/54f57a83d05e462cbf25467f494dd284/FLAGd6c554c8a [2020-10-27 15:33:31,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddb9bd2ea/54f57a83d05e462cbf25467f494dd284 [2020-10-27 15:33:31,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:33:31,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:33:31,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:33:31,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:33:31,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:33:31,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:31,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db2333e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31, skipping insertion in model container [2020-10-27 15:33:31,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:31,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:33:31,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:33:31,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:33:31,690 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:33:31,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:33:31,866 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:33:31,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31 WrapperNode [2020-10-27 15:33:31,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:33:31,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:33:31,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:33:31,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:33:31,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:31,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:31,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:31,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:32,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:32,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:32,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... [2020-10-27 15:33:32,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:33:32,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:33:32,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:33:32,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:33:32,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:33:32,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:33:32,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:33:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:33:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:33:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:33:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:33:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:33:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:33:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:33:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:33:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:33:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:33:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:33:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:33:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:33:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:33:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:33:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:33:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:33:33,691 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:33:33,692 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:33:33,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:33 BoogieIcfgContainer [2020-10-27 15:33:33,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:33:33,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:33:33,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:33:33,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:33:33,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:33:31" (1/3) ... [2020-10-27 15:33:33,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c580a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:33, skipping insertion in model container [2020-10-27 15:33:33,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:31" (2/3) ... [2020-10-27 15:33:33,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c580a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:33, skipping insertion in model container [2020-10-27 15:33:33,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:33" (3/3) ... [2020-10-27 15:33:33,705 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label35.c [2020-10-27 15:33:33,720 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:33:33,727 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:33:33,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:33:33,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:33:33,777 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:33:33,777 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:33:33,777 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:33:33,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:33:33,778 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:33:33,778 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:33:33,778 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:33:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-27 15:33:33,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 15:33:33,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:33:33,817 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] [2020-10-27 15:33:33,818 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:33:33,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:33:33,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1739252851, now seen corresponding path program 1 times [2020-10-27 15:33:33,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:33:33,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932344790] [2020-10-27 15:33:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:33:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:34,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:36,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:36,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 15:33:36,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:33:36,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2057 [2020-10-27 15:33:36,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 15:33:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:33:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 15:33:36,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:33:36,782 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-10-27 15:33:37,407 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:33:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:33:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:37,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:37,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:33:37,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 15:33:37,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:33:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:33:37,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:37,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:33:37,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932344790] [2020-10-27 15:33:37,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:33:37,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 15:33:37,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546350897] [2020-10-27 15:33:37,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:33:37,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:33:37,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:33:37,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:33:37,599 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-27 15:33:37,807 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:33:38,050 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 15:33:38,236 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 15:33:38,480 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 15:33:38,945 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-10-27 15:33:39,451 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2020-10-27 15:33:40,156 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-10-27 15:33:40,940 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2020-10-27 15:33:41,522 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2020-10-27 15:33:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:33:42,817 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-27 15:33:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:33:42,819 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2020-10-27 15:33:42,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:33:42,834 INFO L225 Difference]: With dead ends: 479 [2020-10-27 15:33:42,834 INFO L226 Difference]: Without dead ends: 206 [2020-10-27 15:33:42,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:33:42,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-27 15:33:42,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-27 15:33:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-27 15:33:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-27 15:33:42,939 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 87 [2020-10-27 15:33:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:33:42,940 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-27 15:33:42,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:33:42,940 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-27 15:33:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 15:33:42,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:33:42,945 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] [2020-10-27 15:33:42,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:33:42,946 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:33:42,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:33:42,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1396139925, now seen corresponding path program 1 times [2020-10-27 15:33:42,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:33:42,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833143282] [2020-10-27 15:33:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:33:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:43,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:43,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:44,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:44,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-27 15:33:44,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:33:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1612 [2020-10-27 15:33:44,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:33:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:33:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 15:33:44,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:44,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:33:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:44,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:44,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:44,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:33:44,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:33:44,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:33:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:33:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:44,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:33:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:44,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:44,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:33:44,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:44,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:33:44,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:33:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:44,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:33:44,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:33:44,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833143282] [2020-10-27 15:33:44,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:33:44,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:33:44,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548244508] [2020-10-27 15:33:44,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:33:44,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:33:44,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:33:44,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:33:44,910 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-27 15:33:47,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:33:47,223 INFO L93 Difference]: Finished difference Result 620 states and 902 transitions. [2020-10-27 15:33:47,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:33:47,224 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-10-27 15:33:47,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:33:47,231 INFO L225 Difference]: With dead ends: 620 [2020-10-27 15:33:47,231 INFO L226 Difference]: Without dead ends: 480 [2020-10-27 15:33:47,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:33:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-27 15:33:47,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2020-10-27 15:33:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-10-27 15:33:47,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 668 transitions. [2020-10-27 15:33:47,307 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 668 transitions. Word has length 95 [2020-10-27 15:33:47,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:33:47,311 INFO L481 AbstractCegarLoop]: Abstraction has 480 states and 668 transitions. [2020-10-27 15:33:47,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:33:47,311 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 668 transitions. [2020-10-27 15:33:47,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 15:33:47,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:33:47,322 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] [2020-10-27 15:33:47,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:33:47,323 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:33:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:33:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1481674710, now seen corresponding path program 1 times [2020-10-27 15:33:47,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:33:47,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824422209] [2020-10-27 15:33:47,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:33:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:47,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:47,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:47,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 15:33:47,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:47,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-27 15:33:47,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:33:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 15:33:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 15:33:47,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:47,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:33:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:47,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:47,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:47,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:33:47,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:33:47,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:33:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:33:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:47,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:33:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:47,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:47,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:47,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:33:47,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 15:33:47,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:33:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:33:47,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:33:47,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824422209] [2020-10-27 15:33:47,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:33:47,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:33:47,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971570703] [2020-10-27 15:33:47,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:33:47,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:33:47,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:33:47,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:33:47,920 INFO L87 Difference]: Start difference. First operand 480 states and 668 transitions. Second operand 5 states. [2020-10-27 15:33:49,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:33:49,624 INFO L93 Difference]: Finished difference Result 1305 states and 1885 transitions. [2020-10-27 15:33:49,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:33:49,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-27 15:33:49,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:33:49,633 INFO L225 Difference]: With dead ends: 1305 [2020-10-27 15:33:49,634 INFO L226 Difference]: Without dead ends: 891 [2020-10-27 15:33:49,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:33:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-10-27 15:33:49,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2020-10-27 15:33:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-27 15:33:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1237 transitions. [2020-10-27 15:33:49,688 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1237 transitions. Word has length 98 [2020-10-27 15:33:49,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:33:49,689 INFO L481 AbstractCegarLoop]: Abstraction has 891 states and 1237 transitions. [2020-10-27 15:33:49,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:33:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1237 transitions. [2020-10-27 15:33:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-27 15:33:49,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:33:49,693 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:33:49,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:33:49,694 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:33:49,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:33:49,694 INFO L82 PathProgramCache]: Analyzing trace with hash 607630079, now seen corresponding path program 1 times [2020-10-27 15:33:49,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:33:49,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867225253] [2020-10-27 15:33:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:33:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:49,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:49,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:50,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:50,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 15:33:50,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:33:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-10-27 15:33:50,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:33:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:33:50,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 15:33:50,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:50,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:33:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:50,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:50,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:33:50,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:33:50,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:33:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:33:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:50,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:33:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:50,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:50,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:50,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:33:50,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:50,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:33:50,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:50,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:33:50,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:50,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:33:50,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:50,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:33:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:50,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:50,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:50,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 15:33:50,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 15:33:50,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:33:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:33:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 15:33:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:50,800 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 15:33:50,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867225253] [2020-10-27 15:33:50,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:33:50,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:33:50,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677005053] [2020-10-27 15:33:50,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:33:50,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:33:50,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:33:50,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:33:50,804 INFO L87 Difference]: Start difference. First operand 891 states and 1237 transitions. Second operand 7 states. [2020-10-27 15:33:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:33:52,783 INFO L93 Difference]: Finished difference Result 2445 states and 3591 transitions. [2020-10-27 15:33:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:33:52,785 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-27 15:33:52,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:33:52,800 INFO L225 Difference]: With dead ends: 2445 [2020-10-27 15:33:52,801 INFO L226 Difference]: Without dead ends: 1620 [2020-10-27 15:33:52,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:33:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2020-10-27 15:33:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1598. [2020-10-27 15:33:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1598 states. [2020-10-27 15:33:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2190 transitions. [2020-10-27 15:33:52,915 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2190 transitions. Word has length 107 [2020-10-27 15:33:52,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:33:52,916 INFO L481 AbstractCegarLoop]: Abstraction has 1598 states and 2190 transitions. [2020-10-27 15:33:52,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:33:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2190 transitions. [2020-10-27 15:33:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-27 15:33:52,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:33:52,924 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:33:52,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:33:52,924 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:33:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:33:52,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1410957760, now seen corresponding path program 1 times [2020-10-27 15:33:52,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:33:52,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115944790] [2020-10-27 15:33:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:33:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:52,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:53,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:53,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:53,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 15:33:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:33:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 827 [2020-10-27 15:33:53,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:33:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 15:33:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 15:33:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:33:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:53,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:53,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:33:53,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:33:53,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:33:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:33:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:33:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:53,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:53,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:53,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:33:53,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:53,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:33:53,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:33:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:33:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:33:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:53,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:33:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:53,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:54,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:54,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 15:33:54,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:33:54,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 15:33:54,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:33:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:33:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 15:33:54,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:33:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 15:33:54,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115944790] [2020-10-27 15:33:54,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:33:54,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:33:54,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785864111] [2020-10-27 15:33:54,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:33:54,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:33:54,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:33:54,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:33:54,083 INFO L87 Difference]: Start difference. First operand 1598 states and 2190 transitions. Second operand 7 states. [2020-10-27 15:33:55,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:33:55,878 INFO L93 Difference]: Finished difference Result 3992 states and 5686 transitions. [2020-10-27 15:33:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:33:55,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-27 15:33:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:33:55,895 INFO L225 Difference]: With dead ends: 3992 [2020-10-27 15:33:55,895 INFO L226 Difference]: Without dead ends: 2460 [2020-10-27 15:33:55,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:33:55,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2020-10-27 15:33:55,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2460. [2020-10-27 15:33:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-10-27 15:33:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3288 transitions. [2020-10-27 15:33:56,012 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3288 transitions. Word has length 110 [2020-10-27 15:33:56,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:33:56,013 INFO L481 AbstractCegarLoop]: Abstraction has 2460 states and 3288 transitions. [2020-10-27 15:33:56,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:33:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3288 transitions. [2020-10-27 15:33:56,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 15:33:56,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:33:56,020 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:33:56,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:33:56,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:33:56,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:33:56,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1986391804, now seen corresponding path program 1 times [2020-10-27 15:33:56,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:33:56,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009726399] [2020-10-27 15:33:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:33:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:33:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:56,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:57,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:58,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:33:59,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:33:59,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 15:33:59,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:33:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3499 [2020-10-27 15:33:59,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:33:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:33:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 15:33:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 15:33:59,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:00,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:00,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:00,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:00,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:00,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:34:00,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:00,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:34:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:00,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:00,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:00,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:34:00,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:00,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:34:00,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:00,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:34:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:00,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:00,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:00,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:34:00,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:00,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 15:34:00,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:34:00,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:34:00,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009726399] [2020-10-27 15:34:00,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:34:00,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 15:34:00,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160645609] [2020-10-27 15:34:00,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 15:34:00,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:00,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 15:34:00,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-27 15:34:00,396 INFO L87 Difference]: Start difference. First operand 2460 states and 3288 transitions. Second operand 14 states. [2020-10-27 15:34:01,142 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-10-27 15:34:01,546 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2020-10-27 15:34:02,371 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-27 15:34:03,012 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-27 15:34:03,479 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-10-27 15:34:03,920 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-27 15:34:04,290 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 15:34:04,531 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:34:05,056 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-27 15:34:05,364 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 15:34:05,780 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 15:34:06,025 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 15:34:06,269 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 15:34:06,674 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 15:34:06,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:34:06,845 INFO L93 Difference]: Finished difference Result 5028 states and 6930 transitions. [2020-10-27 15:34:06,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 15:34:06,847 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 114 [2020-10-27 15:34:06,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:34:06,864 INFO L225 Difference]: With dead ends: 5028 [2020-10-27 15:34:06,864 INFO L226 Difference]: Without dead ends: 2634 [2020-10-27 15:34:06,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=294, Invalid=698, Unknown=0, NotChecked=0, Total=992 [2020-10-27 15:34:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2020-10-27 15:34:06,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2520. [2020-10-27 15:34:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2520 states. [2020-10-27 15:34:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3362 transitions. [2020-10-27 15:34:06,976 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3362 transitions. Word has length 114 [2020-10-27 15:34:06,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:34:06,977 INFO L481 AbstractCegarLoop]: Abstraction has 2520 states and 3362 transitions. [2020-10-27 15:34:06,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 15:34:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3362 transitions. [2020-10-27 15:34:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-27 15:34:06,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:06,985 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:34:06,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:34:06,985 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:06,986 INFO L82 PathProgramCache]: Analyzing trace with hash -67354710, now seen corresponding path program 1 times [2020-10-27 15:34:06,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:06,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032201082] [2020-10-27 15:34:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:07,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:07,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:08,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:08,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-27 15:34:08,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:34:08,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1395 [2020-10-27 15:34:08,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:08,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:34:08,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:34:08,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 15:34:08,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:08,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:08,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:08,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:08,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:34:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:34:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:08,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:34:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:34:08,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:34:08,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:34:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:08,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:08,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 15:34:08,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 15:34:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 15:34:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:08,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 15:34:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:08,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:08,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:08,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 15:34:08,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 15:34:08,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:34:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:34:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 15:34:08,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:34:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 15:34:08,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032201082] [2020-10-27 15:34:08,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:34:08,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:34:08,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510852344] [2020-10-27 15:34:08,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:34:08,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:08,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:34:08,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:34:08,797 INFO L87 Difference]: Start difference. First operand 2520 states and 3362 transitions. Second operand 7 states. [2020-10-27 15:34:09,245 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 15:34:11,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:34:11,073 INFO L93 Difference]: Finished difference Result 6117 states and 9398 transitions. [2020-10-27 15:34:11,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 15:34:11,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-27 15:34:11,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:34:11,107 INFO L225 Difference]: With dead ends: 6117 [2020-10-27 15:34:11,107 INFO L226 Difference]: Without dead ends: 3663 [2020-10-27 15:34:11,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:34:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2020-10-27 15:34:11,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3205. [2020-10-27 15:34:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3205 states. [2020-10-27 15:34:11,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 4088 transitions. [2020-10-27 15:34:11,286 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 4088 transitions. Word has length 140 [2020-10-27 15:34:11,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:34:11,287 INFO L481 AbstractCegarLoop]: Abstraction has 3205 states and 4088 transitions. [2020-10-27 15:34:11,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:34:11,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 4088 transitions. [2020-10-27 15:34:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 15:34:11,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:11,296 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:34:11,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:34:11,296 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:11,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:11,297 INFO L82 PathProgramCache]: Analyzing trace with hash 394562080, now seen corresponding path program 1 times [2020-10-27 15:34:11,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:11,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355756688] [2020-10-27 15:34:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:11,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:11,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:12,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:13,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:13,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 15:34:13,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:34:13,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2470 [2020-10-27 15:34:13,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:34:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-27 15:34:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 15:34:13,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:13,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:13,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:13,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:13,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:13,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:13,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:34:13,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:13,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:13,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:34:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:13,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:13,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:13,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:34:13,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:13,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:34:13,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:13,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:13,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:13,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:34:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:34:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:14,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:14,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 15:34:14,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:14,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 15:34:14,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 15:34:14,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:14,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 15:34:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:14,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:14,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:14,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:34:14,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:14,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 15:34:14,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:34:14,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:34:14,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:34:14,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:34:14,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 15:34:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:14,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:14,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:14,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 15:34:14,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:14,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 15:34:14,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:14,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:14,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 15:34:14,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:14,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:34:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 77 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-27 15:34:14,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355756688] [2020-10-27 15:34:14,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:34:14,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:34:14,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85069421] [2020-10-27 15:34:14,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:34:14,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:14,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:34:14,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:34:14,177 INFO L87 Difference]: Start difference. First operand 3205 states and 4088 transitions. Second operand 7 states. [2020-10-27 15:34:14,354 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:34:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:34:16,145 INFO L93 Difference]: Finished difference Result 7605 states and 10012 transitions. [2020-10-27 15:34:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:34:16,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-10-27 15:34:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:34:16,170 INFO L225 Difference]: With dead ends: 7605 [2020-10-27 15:34:16,170 INFO L226 Difference]: Without dead ends: 4466 [2020-10-27 15:34:16,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:34:16,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2020-10-27 15:34:16,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4152. [2020-10-27 15:34:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4152 states. [2020-10-27 15:34:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 5286 transitions. [2020-10-27 15:34:16,347 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 5286 transitions. Word has length 152 [2020-10-27 15:34:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:34:16,347 INFO L481 AbstractCegarLoop]: Abstraction has 4152 states and 5286 transitions. [2020-10-27 15:34:16,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:34:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 5286 transitions. [2020-10-27 15:34:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-27 15:34:16,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:16,359 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:34:16,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:34:16,359 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:16,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1089654052, now seen corresponding path program 1 times [2020-10-27 15:34:16,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:16,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816665408] [2020-10-27 15:34:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 15:34:16,424 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 15:34:16,424 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 15:34:16,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:34:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:34:16 BoogieIcfgContainer [2020-10-27 15:34:16,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:34:16,499 INFO L168 Benchmark]: Toolchain (without parser) took 45425.02 ms. Allocated memory was 155.2 MB in the beginning and 731.9 MB in the end (delta: 576.7 MB). Free memory was 128.4 MB in the beginning and 467.2 MB in the end (delta: -338.9 MB). Peak memory consumption was 238.7 MB. Max. memory is 8.0 GB. [2020-10-27 15:34:16,500 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:34:16,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.05 ms. Allocated memory is still 155.2 MB. Free memory was 127.8 MB in the beginning and 100.9 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-27 15:34:16,504 INFO L168 Benchmark]: Boogie Preprocessor took 205.08 ms. Allocated memory is still 155.2 MB. Free memory was 100.9 MB in the beginning and 132.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2020-10-27 15:34:16,507 INFO L168 Benchmark]: RCFGBuilder took 1617.62 ms. Allocated memory was 155.2 MB in the beginning and 194.0 MB in the end (delta: 38.8 MB). Free memory was 132.7 MB in the beginning and 151.2 MB in the end (delta: -18.5 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2020-10-27 15:34:16,512 INFO L168 Benchmark]: TraceAbstraction took 42801.33 ms. Allocated memory was 194.0 MB in the beginning and 731.9 MB in the end (delta: 537.9 MB). Free memory was 150.7 MB in the beginning and 467.2 MB in the end (delta: -316.5 MB). Peak memory consumption was 221.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:34:16,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 786.05 ms. Allocated memory is still 155.2 MB. Free memory was 127.8 MB in the beginning and 100.9 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 205.08 ms. Allocated memory is still 155.2 MB. Free memory was 100.9 MB in the beginning and 132.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1617.62 ms. Allocated memory was 155.2 MB in the beginning and 194.0 MB in the end (delta: 38.8 MB). Free memory was 132.7 MB in the beginning and 151.2 MB in the end (delta: -18.5 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42801.33 ms. Allocated memory was 194.0 MB in the beginning and 731.9 MB in the end (delta: 537.9 MB). Free memory was 150.7 MB in the beginning and 467.2 MB in the end (delta: -316.5 MB). Peak memory consumption was 221.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int d= 4; [L11] int e= 5; [L12] int f= 6; [L13] int c= 3; [L14] int b= 2; [L17] int u = 21; [L18] int v = 22; [L19] int w = 23; [L20] int x = 24; [L21] int y = 25; [L22] int z = 26; [L24] int a17 = 1; [L25] int a7 = 0; [L26] int a20 = 1; [L27] int a8 = 15; [L28] int a12 = 8; [L29] int a16 = 5; [L30] int a21 = 1; [L582] int output = -1; [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L336] a17 = 0 [L337] a16 = 4 [L338] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L271] a20 = 0 [L272] a17 = 1 [L273] a16 = 6 [L274] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L65] a17 = 0 [L66] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND TRUE (((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8)) [L57] a7 = 0 [L58] a20 = 1 [L59] a21 = 1 [L60] a16 = 4 [L61] a17 = 1 [L62] a8 = 13 [L63] return -1; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L374] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L379] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L384] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L393] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L396] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L399] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L402] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L405] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L408] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L411] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L414] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L417] COND TRUE (((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L418] CALL reach_error() [L4] __assert_fail("0", "Problem01_label35.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.6s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 234 SDtfs, 3538 SDslu, 318 SDs, 0 SdLazy, 6974 SolverSat, 930 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4152occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 908 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 1129 NumberOfCodeBlocks, 1129 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 895 ConstructedInterpolants, 0 QuantifiedInterpolants, 687518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 253/271 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 incorrect! Received shutdown request...