/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:38:13,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:38:13,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:38:13,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:38:13,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:38:13,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:38:13,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:38:13,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:38:13,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:38:13,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:38:13,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:38:13,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:38:13,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:38:13,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:38:13,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:38:13,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:38:13,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:38:13,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:38:13,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:38:13,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:38:13,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:38:13,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:38:13,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:38:13,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:38:13,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:38:13,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:38:13,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:38:13,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:38:13,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:38:13,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:38:13,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:38:13,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:38:13,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:38:13,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:38:13,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:38:13,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:38:13,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:38:13,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:38:13,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:38:13,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:38:13,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:38:13,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:38:13,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:38:13,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:38:13,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:38:13,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:38:13,992 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:38:13,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:38:13,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:38:13,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:38:13,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:38:13,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:38:13,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:38:13,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:38:13,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:38:13,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:38:13,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:38:13,994 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:38:13,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:38:13,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:38:13,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:38:13,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:38:13,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:38:13,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:38:13,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:38:13,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:38:13,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:38:13,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:38:13,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:38:13,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:38:13,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:38:13,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:38:14,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:38:14,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:38:14,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:38:14,420 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:38:14,420 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:38:14,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label16.c [2020-10-26 20:38:14,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44bb0c317/c5fb5424dc1145b7baee2f627876e629/FLAG50606ec2c [2020-10-26 20:38:15,228 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:38:15,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label16.c [2020-10-26 20:38:15,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44bb0c317/c5fb5424dc1145b7baee2f627876e629/FLAG50606ec2c [2020-10-26 20:38:15,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44bb0c317/c5fb5424dc1145b7baee2f627876e629 [2020-10-26 20:38:15,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:38:15,511 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:38:15,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:38:15,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:38:15,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:38:15,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:38:15" (1/1) ... [2020-10-26 20:38:15,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93a579f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:15, skipping insertion in model container [2020-10-26 20:38:15,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:38:15" (1/1) ... [2020-10-26 20:38:15,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:38:15,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:38:16,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:38:16,056 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:38:16,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:38:16,187 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:38:16,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16 WrapperNode [2020-10-26 20:38:16,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:38:16,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:38:16,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:38:16,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:38:16,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... [2020-10-26 20:38:16,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... [2020-10-26 20:38:16,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... [2020-10-26 20:38:16,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... [2020-10-26 20:38:16,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... [2020-10-26 20:38:16,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... [2020-10-26 20:38:16,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... [2020-10-26 20:38:16,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:38:16,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:38:16,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:38:16,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:38:16,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:38:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:38:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:38:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:38:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:38:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:38:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:38:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:38:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:38:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:38:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:38:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:38:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:38:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:38:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:38:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:38:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:38:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:38:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:38:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:38:18,093 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:38:18,093 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:38:18,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:38:18 BoogieIcfgContainer [2020-10-26 20:38:18,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:38:18,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:38:18,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:38:18,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:38:18,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:38:15" (1/3) ... [2020-10-26 20:38:18,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726e6c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:38:18, skipping insertion in model container [2020-10-26 20:38:18,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:16" (2/3) ... [2020-10-26 20:38:18,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726e6c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:38:18, skipping insertion in model container [2020-10-26 20:38:18,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:38:18" (3/3) ... [2020-10-26 20:38:18,105 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label16.c [2020-10-26 20:38:18,118 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:38:18,124 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:38:18,138 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:38:18,167 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:38:18,168 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:38:18,168 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:38:18,168 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:38:18,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:38:18,168 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:38:18,168 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:38:18,168 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:38:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:38:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-26 20:38:18,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:18,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:18,205 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:18,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:18,212 INFO L82 PathProgramCache]: Analyzing trace with hash 40579837, now seen corresponding path program 1 times [2020-10-26 20:38:18,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:18,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575961613] [2020-10-26 20:38:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:18,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:18,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:20,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:20,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-26 20:38:20,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1747 [2020-10-26 20:38:20,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 20:38:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:38:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:38:20,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:20,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:20,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:20,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:20,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:38:20,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:20,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:20,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:20,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:20,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:38:21,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575961613] [2020-10-26 20:38:21,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:38:21,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 20:38:21,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893645433] [2020-10-26 20:38:21,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 20:38:21,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:21,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 20:38:21,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:21,103 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-26 20:38:21,297 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:38:21,459 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-26 20:38:21,607 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-26 20:38:21,782 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-26 20:38:22,197 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2020-10-26 20:38:22,632 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-10-26 20:38:23,434 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-10-26 20:38:24,116 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 105 [2020-10-26 20:38:25,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:25,450 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-26 20:38:25,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:38:25,458 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-10-26 20:38:25,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:25,472 INFO L225 Difference]: With dead ends: 541 [2020-10-26 20:38:25,472 INFO L226 Difference]: Without dead ends: 237 [2020-10-26 20:38:25,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-26 20:38:25,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-26 20:38:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-26 20:38:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-26 20:38:25,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-26 20:38:25,551 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 94 [2020-10-26 20:38:25,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:25,552 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-26 20:38:25,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 20:38:25,552 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-26 20:38:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-26 20:38:25,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:25,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:25,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:38:25,559 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:25,560 INFO L82 PathProgramCache]: Analyzing trace with hash -685239588, now seen corresponding path program 1 times [2020-10-26 20:38:25,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:25,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023045652] [2020-10-26 20:38:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:25,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:26,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:27,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:27,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-26 20:38:27,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:27,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1808 [2020-10-26 20:38:27,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:27,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-26 20:38:27,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:38:27,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:27,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:27,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:27,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:27,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:27,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:38:27,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:27,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-26 20:38:27,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:27,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:27,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:27,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:27,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:27,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:38:27,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:38:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:38:27,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023045652] [2020-10-26 20:38:27,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:27,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:38:27,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992228403] [2020-10-26 20:38:27,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:38:27,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:27,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:38:27,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:38:27,737 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 6 states. [2020-10-26 20:38:29,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:29,450 INFO L93 Difference]: Finished difference Result 618 states and 888 transitions. [2020-10-26 20:38:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:38:29,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2020-10-26 20:38:29,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:29,458 INFO L225 Difference]: With dead ends: 618 [2020-10-26 20:38:29,458 INFO L226 Difference]: Without dead ends: 390 [2020-10-26 20:38:29,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:38:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-10-26 20:38:29,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 381. [2020-10-26 20:38:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-26 20:38:29,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 549 transitions. [2020-10-26 20:38:29,531 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 549 transitions. Word has length 103 [2020-10-26 20:38:29,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:29,532 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 549 transitions. [2020-10-26 20:38:29,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:38:29,534 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 549 transitions. [2020-10-26 20:38:29,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-26 20:38:29,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:29,542 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:29,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:38:29,542 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:29,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:29,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1430838257, now seen corresponding path program 1 times [2020-10-26 20:38:29,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:29,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524032821] [2020-10-26 20:38:29,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:29,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:29,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:30,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:31,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 20:38:31,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:38:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1952 [2020-10-26 20:38:31,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:31,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:31,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:38:31,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:31,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:31,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:31,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:31,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:31,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:38:31,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:31,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:31,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:31,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:31,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:31,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:31,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:31,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:31,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:38:31,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:38:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:31,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:38:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:31,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:31,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:38:31,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:38:31,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:38:31,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:31,884 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:38:31,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524032821] [2020-10-26 20:38:31,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:31,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:31,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398118347] [2020-10-26 20:38:31,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:38:31,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:31,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:38:31,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:38:31,888 INFO L87 Difference]: Start difference. First operand 381 states and 549 transitions. Second operand 8 states. [2020-10-26 20:38:33,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:33,918 INFO L93 Difference]: Finished difference Result 913 states and 1342 transitions. [2020-10-26 20:38:33,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:38:33,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-10-26 20:38:33,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:33,923 INFO L225 Difference]: With dead ends: 913 [2020-10-26 20:38:33,923 INFO L226 Difference]: Without dead ends: 538 [2020-10-26 20:38:33,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-26 20:38:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 531. [2020-10-26 20:38:33,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-10-26 20:38:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 765 transitions. [2020-10-26 20:38:33,961 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 765 transitions. Word has length 118 [2020-10-26 20:38:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:33,961 INFO L481 AbstractCegarLoop]: Abstraction has 531 states and 765 transitions. [2020-10-26 20:38:33,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:38:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 765 transitions. [2020-10-26 20:38:33,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-26 20:38:33,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:33,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:33,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:38:33,966 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:33,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:33,967 INFO L82 PathProgramCache]: Analyzing trace with hash 451418221, now seen corresponding path program 1 times [2020-10-26 20:38:33,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:33,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40615427] [2020-10-26 20:38:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:34,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:34,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:34,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:34,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 20:38:34,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:34,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-10-26 20:38:34,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:38:34,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:34,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:34,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:34,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:34,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:38:34,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:34,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:34,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:34,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:34,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:34,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:38:34,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:38:34,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:34,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:38:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:34,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:34,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:34,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:38:34,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:34,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:38:34,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:34,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:34,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:38:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:38:35,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40615427] [2020-10-26 20:38:35,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:35,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:35,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856148636] [2020-10-26 20:38:35,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:38:35,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:35,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:38:35,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:38:35,023 INFO L87 Difference]: Start difference. First operand 531 states and 765 transitions. Second operand 8 states. [2020-10-26 20:38:37,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:37,278 INFO L93 Difference]: Finished difference Result 1418 states and 2096 transitions. [2020-10-26 20:38:37,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:38:37,279 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 125 [2020-10-26 20:38:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:37,289 INFO L225 Difference]: With dead ends: 1418 [2020-10-26 20:38:37,290 INFO L226 Difference]: Without dead ends: 893 [2020-10-26 20:38:37,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-10-26 20:38:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 859. [2020-10-26 20:38:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-26 20:38:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1223 transitions. [2020-10-26 20:38:37,350 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1223 transitions. Word has length 125 [2020-10-26 20:38:37,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:37,350 INFO L481 AbstractCegarLoop]: Abstraction has 859 states and 1223 transitions. [2020-10-26 20:38:37,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:38:37,350 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1223 transitions. [2020-10-26 20:38:37,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-26 20:38:37,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:37,354 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:37,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:38:37,355 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:37,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:37,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1390049627, now seen corresponding path program 1 times [2020-10-26 20:38:37,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:37,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382954036] [2020-10-26 20:38:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:37,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:37,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:37,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:37,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:38,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:38,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-26 20:38:38,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:38:38,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1433 [2020-10-26 20:38:38,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-26 20:38:38,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:38,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:38,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:38,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:38,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:38,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:38,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:38:38,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:38,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:38,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:38,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:39,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:39,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:39,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:39,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:39,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:38:39,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:39,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:39,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:39,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:38:39,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:39,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:38:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:39,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:39,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:39,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:38:39,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:39,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 20:38:39,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-26 20:38:39,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:38:39,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382954036] [2020-10-26 20:38:39,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:39,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:39,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321083333] [2020-10-26 20:38:39,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:38:39,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:39,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:38:39,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:38:39,185 INFO L87 Difference]: Start difference. First operand 859 states and 1223 transitions. Second operand 8 states. [2020-10-26 20:38:39,981 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 20:38:41,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:41,322 INFO L93 Difference]: Finished difference Result 2363 states and 3538 transitions. [2020-10-26 20:38:41,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:38:41,323 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-10-26 20:38:41,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:41,334 INFO L225 Difference]: With dead ends: 2363 [2020-10-26 20:38:41,335 INFO L226 Difference]: Without dead ends: 1510 [2020-10-26 20:38:41,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2020-10-26 20:38:41,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1333. [2020-10-26 20:38:41,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1333 states. [2020-10-26 20:38:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1827 transitions. [2020-10-26 20:38:41,409 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1827 transitions. Word has length 129 [2020-10-26 20:38:41,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:41,409 INFO L481 AbstractCegarLoop]: Abstraction has 1333 states and 1827 transitions. [2020-10-26 20:38:41,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:38:41,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1827 transitions. [2020-10-26 20:38:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-26 20:38:41,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:41,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:41,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:38:41,415 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:41,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:41,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1550299739, now seen corresponding path program 1 times [2020-10-26 20:38:41,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:41,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885126648] [2020-10-26 20:38:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 20:38:41,457 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 20:38:41,457 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 20:38:41,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:38:41,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:38:41 BoogieIcfgContainer [2020-10-26 20:38:41,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:38:41,495 INFO L168 Benchmark]: Toolchain (without parser) took 25988.96 ms. Allocated memory was 165.7 MB in the beginning and 470.8 MB in the end (delta: 305.1 MB). Free memory was 139.7 MB in the beginning and 382.8 MB in the end (delta: -243.1 MB). Peak memory consumption was 63.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:41,495 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:38:41,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.43 ms. Allocated memory is still 165.7 MB. Free memory was 139.1 MB in the beginning and 113.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:41,497 INFO L168 Benchmark]: Boogie Preprocessor took 160.37 ms. Allocated memory is still 165.7 MB. Free memory was 113.5 MB in the beginning and 145.5 MB in the end (delta: -32.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:41,498 INFO L168 Benchmark]: RCFGBuilder took 1744.84 ms. Allocated memory was 165.7 MB in the beginning and 206.6 MB in the end (delta: 40.9 MB). Free memory was 145.5 MB in the beginning and 173.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 93.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:41,499 INFO L168 Benchmark]: TraceAbstraction took 23395.18 ms. Allocated memory was 206.6 MB in the beginning and 470.8 MB in the end (delta: 264.2 MB). Free memory was 172.5 MB in the beginning and 382.8 MB in the end (delta: -210.3 MB). Peak memory consumption was 54.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:41,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 675.43 ms. Allocated memory is still 165.7 MB. Free memory was 139.1 MB in the beginning and 113.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 160.37 ms. Allocated memory is still 165.7 MB. Free memory was 113.5 MB in the beginning and 145.5 MB in the end (delta: -32.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1744.84 ms. Allocated memory was 165.7 MB in the beginning and 206.6 MB in the end (delta: 40.9 MB). Free memory was 145.5 MB in the beginning and 173.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 93.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23395.18 ms. Allocated memory was 206.6 MB in the beginning and 470.8 MB in the end (delta: 264.2 MB). Free memory was 172.5 MB in the beginning and 382.8 MB in the end (delta: -210.3 MB). Peak memory consumption was 54.4 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 e= 5; [L11] int d= 4; [L12] int f= 6; [L13] int c= 3; [L16] int u = 21; [L17] int v = 22; [L18] int w = 23; [L19] int x = 24; [L20] int y = 25; [L21] int z = 26; [L24] int a25 = 0; [L25] int a11 = 0; [L26] int a28 = 7; [L27] int a19 = 1; [L28] int a21 = 1; [L29] int a17 = 8; [L605] int output = -1; [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND TRUE ((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7))))) [L53] a28 = 11 [L54] a25 = 1 [L55] return 26; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND TRUE ((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1)) [L102] a17 = 7 [L103] a25 = 0 [L104] a11 = 1 [L105] a28 = 10 [L106] a19 = 0 [L107] return -1; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L400] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L404] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L406] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L409] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L411] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L416] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L419] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L422] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L425] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L428] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L431] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L434] COND TRUE (((((!(a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7)) [L435] CALL reach_error() [L4] __assert_fail("0", "Problem02_label16.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.2s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 2491 SDslu, 292 SDs, 0 SdLazy, 4464 SolverSat, 1019 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1333occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 230 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 698 NumberOfCodeBlocks, 698 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 564 ConstructedInterpolants, 0 QuantifiedInterpolants, 323125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 94/105 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...