/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:32:04,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:32:04,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:32:04,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:32:04,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:32:04,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:32:04,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:32:04,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:32:04,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:32:04,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:32:04,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:32:04,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:32:04,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:32:04,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:32:04,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:32:04,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:32:04,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:32:04,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:32:04,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:32:04,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:32:04,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:32:04,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:32:04,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:32:04,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:32:04,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:32:04,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:32:04,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:32:04,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:32:04,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:32:04,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:32:04,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:32:04,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:32:04,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:32:04,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:32:04,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:32:04,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:32:04,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:32:04,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:32:04,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:32:04,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:32:04,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:32:04,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:32:04,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:32:04,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:32:04,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:32:04,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:32:04,326 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:32:04,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:32:04,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:32:04,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:32:04,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:32:04,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:32:04,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:32:04,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:32:04,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:32:04,330 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:32:04,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:32:04,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:32:04,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:32:04,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:32:04,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:32:04,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:32:04,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:32:04,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:04,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:32:04,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:32:04,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:32:04,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:32:04,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:32:04,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:32:04,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:32:04,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:32:04,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:32:04,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:32:04,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:32:04,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:32:04,792 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:32:04,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2020-10-26 20:32:04,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88c6e9db2/b7aff7b6b5554dc3a16bf5c0390d9fc6/FLAGb2654cb2f [2020-10-26 20:32:05,692 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:32:05,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2020-10-26 20:32:05,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88c6e9db2/b7aff7b6b5554dc3a16bf5c0390d9fc6/FLAGb2654cb2f [2020-10-26 20:32:05,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88c6e9db2/b7aff7b6b5554dc3a16bf5c0390d9fc6 [2020-10-26 20:32:05,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:32:05,931 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:32:05,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:05,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:32:05,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:32:05,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:05" (1/1) ... [2020-10-26 20:32:05,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a74ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:05, skipping insertion in model container [2020-10-26 20:32:05,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:05" (1/1) ... [2020-10-26 20:32:05,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:32:06,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:32:06,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:06,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:32:06,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:06,771 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:32:06,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06 WrapperNode [2020-10-26 20:32:06,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:06,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:32:06,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:32:06,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:32:06,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... [2020-10-26 20:32:06,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... [2020-10-26 20:32:06,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... [2020-10-26 20:32:06,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... [2020-10-26 20:32:06,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... [2020-10-26 20:32:06,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... [2020-10-26 20:32:06,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... [2020-10-26 20:32:06,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:32:06,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:32:06,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:32:06,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:32:06,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:32:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:32:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:32:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:32:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:32:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:32:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:32:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:32:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:32:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:32:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:32:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:32:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:32:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:32:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:32:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:32:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:32:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:32:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:32:08,267 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:32:08,267 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:32:08,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:08 BoogieIcfgContainer [2020-10-26 20:32:08,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:32:08,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:32:08,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:32:08,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:32:08,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:32:05" (1/3) ... [2020-10-26 20:32:08,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4ae900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:08, skipping insertion in model container [2020-10-26 20:32:08,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:06" (2/3) ... [2020-10-26 20:32:08,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4ae900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:08, skipping insertion in model container [2020-10-26 20:32:08,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:08" (3/3) ... [2020-10-26 20:32:08,280 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label16.c [2020-10-26 20:32:08,299 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:32:08,315 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:32:08,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:32:08,410 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:32:08,410 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:32:08,411 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:32:08,411 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:32:08,411 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:32:08,411 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:32:08,411 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:32:08,411 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:32:08,441 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:32:08,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-26 20:32:08,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:08,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:08,469 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:08,477 INFO L82 PathProgramCache]: Analyzing trace with hash -2047554309, now seen corresponding path program 1 times [2020-10-26 20:32:08,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:08,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103781522] [2020-10-26 20:32:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:08,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:11,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:11,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-26 20:32:11,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2845 [2020-10-26 20:32:11,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:11,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:11,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:11,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-26 20:32:11,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:32:11,989 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:11,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:12,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:12,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:12,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:12,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:32:12,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:12,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103781522] [2020-10-26 20:32:12,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:12,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:32:12,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525618101] [2020-10-26 20:32:12,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:32:12,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:12,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:32:12,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:32:12,184 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:32:14,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:14,066 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:32:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:32:14,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-10-26 20:32:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:14,085 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:32:14,085 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:32:14,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:32:14,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:32:14,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:32:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:32:14,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-26 20:32:14,189 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 137 [2020-10-26 20:32:14,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:14,190 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-26 20:32:14,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:32:14,191 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-26 20:32:14,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 20:32:14,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:14,200 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:14,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:32:14,202 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:14,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:14,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1116371898, now seen corresponding path program 1 times [2020-10-26 20:32:14,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:14,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581453350] [2020-10-26 20:32:14,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:14,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:18,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-26 20:32:18,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:18,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4412 [2020-10-26 20:32:18,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:32:18,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:18,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:18,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:18,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:18,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:18,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:18,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:18,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:18,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:18,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:32:18,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:32:18,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:32:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:18,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581453350] [2020-10-26 20:32:18,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:18,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:32:18,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889668562] [2020-10-26 20:32:18,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:18,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:18,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:18,954 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 7 states. [2020-10-26 20:32:20,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:20,718 INFO L93 Difference]: Finished difference Result 856 states and 1249 transitions. [2020-10-26 20:32:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:20,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-10-26 20:32:20,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:20,729 INFO L225 Difference]: With dead ends: 856 [2020-10-26 20:32:20,730 INFO L226 Difference]: Without dead ends: 581 [2020-10-26 20:32:20,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-26 20:32:20,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 563. [2020-10-26 20:32:20,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-10-26 20:32:20,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 772 transitions. [2020-10-26 20:32:20,840 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 772 transitions. Word has length 146 [2020-10-26 20:32:20,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:20,841 INFO L481 AbstractCegarLoop]: Abstraction has 563 states and 772 transitions. [2020-10-26 20:32:20,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 772 transitions. [2020-10-26 20:32:20,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-26 20:32:20,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:20,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:20,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:32:20,862 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:20,863 INFO L82 PathProgramCache]: Analyzing trace with hash 55935818, now seen corresponding path program 1 times [2020-10-26 20:32:20,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:20,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402371235] [2020-10-26 20:32:20,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:20,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:20,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:22,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:22,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-26 20:32:22,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1399 [2020-10-26 20:32:22,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:32:22,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:22,490 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:22,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:22,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:22,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:22,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:22,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:22,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:22,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:22,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:22,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:22,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:22,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:32:22,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:22,693 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:22,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402371235] [2020-10-26 20:32:22,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:22,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:32:22,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179093329] [2020-10-26 20:32:22,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:22,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:22,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:22,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:22,697 INFO L87 Difference]: Start difference. First operand 563 states and 772 transitions. Second operand 7 states. [2020-10-26 20:32:22,831 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:24,666 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:24,695 INFO L93 Difference]: Finished difference Result 1561 states and 2200 transitions. [2020-10-26 20:32:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:24,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-10-26 20:32:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:24,703 INFO L225 Difference]: With dead ends: 1561 [2020-10-26 20:32:24,704 INFO L226 Difference]: Without dead ends: 1004 [2020-10-26 20:32:24,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:24,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-10-26 20:32:24,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 990. [2020-10-26 20:32:24,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2020-10-26 20:32:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1305 transitions. [2020-10-26 20:32:24,759 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1305 transitions. Word has length 154 [2020-10-26 20:32:24,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:24,759 INFO L481 AbstractCegarLoop]: Abstraction has 990 states and 1305 transitions. [2020-10-26 20:32:24,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1305 transitions. [2020-10-26 20:32:24,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-26 20:32:24,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:24,766 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:24,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:32:24,766 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:24,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:24,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1297313529, now seen corresponding path program 1 times [2020-10-26 20:32:24,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:24,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744980112] [2020-10-26 20:32:24,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:24,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:26,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:27,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-26 20:32:27,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:27,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2629 [2020-10-26 20:32:27,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:27,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:32:27,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:27,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:27,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:27,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:27,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:27,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:27,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:27,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:27,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:32:27,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:27,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:27,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:27,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:27,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:27,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:27,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:32:27,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:27,881 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:32:27,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744980112] [2020-10-26 20:32:27,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:27,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:27,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671116631] [2020-10-26 20:32:27,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:27,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:27,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:27,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:27,885 INFO L87 Difference]: Start difference. First operand 990 states and 1305 transitions. Second operand 8 states. [2020-10-26 20:32:28,057 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:30,243 INFO L93 Difference]: Finished difference Result 2278 states and 3081 transitions. [2020-10-26 20:32:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:30,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-10-26 20:32:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:30,253 INFO L225 Difference]: With dead ends: 2278 [2020-10-26 20:32:30,254 INFO L226 Difference]: Without dead ends: 1294 [2020-10-26 20:32:30,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:32:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2020-10-26 20:32:30,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1004. [2020-10-26 20:32:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1004 states. [2020-10-26 20:32:30,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1316 transitions. [2020-10-26 20:32:30,314 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1316 transitions. Word has length 165 [2020-10-26 20:32:30,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:30,314 INFO L481 AbstractCegarLoop]: Abstraction has 1004 states and 1316 transitions. [2020-10-26 20:32:30,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1316 transitions. [2020-10-26 20:32:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-26 20:32:30,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:30,320 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:30,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:32:30,320 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:30,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:30,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1622329625, now seen corresponding path program 1 times [2020-10-26 20:32:30,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:30,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155566090] [2020-10-26 20:32:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:30,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:30,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:30,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-26 20:32:34,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:34,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3782 [2020-10-26 20:32:34,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:32:34,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:34,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:34,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:34,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:34,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:32:34,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:34,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:32:34,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:32:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:32:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:34,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:34,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:32:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 44 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:32:34,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155566090] [2020-10-26 20:32:34,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:34,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:34,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192392560] [2020-10-26 20:32:34,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:34,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:34,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:34,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:34,595 INFO L87 Difference]: Start difference. First operand 1004 states and 1316 transitions. Second operand 7 states. [2020-10-26 20:32:34,731 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:32:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:36,608 INFO L93 Difference]: Finished difference Result 2429 states and 3209 transitions. [2020-10-26 20:32:36,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:36,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-26 20:32:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:36,617 INFO L225 Difference]: With dead ends: 2429 [2020-10-26 20:32:36,617 INFO L226 Difference]: Without dead ends: 1431 [2020-10-26 20:32:36,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:32:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2020-10-26 20:32:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1290. [2020-10-26 20:32:36,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1290 states. [2020-10-26 20:32:36,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1684 transitions. [2020-10-26 20:32:36,681 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1684 transitions. Word has length 181 [2020-10-26 20:32:36,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:36,682 INFO L481 AbstractCegarLoop]: Abstraction has 1290 states and 1684 transitions. [2020-10-26 20:32:36,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:36,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1684 transitions. [2020-10-26 20:32:36,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-26 20:32:36,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:36,689 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:36,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:32:36,690 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:36,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:36,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2133560277, now seen corresponding path program 1 times [2020-10-26 20:32:36,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:36,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301773492] [2020-10-26 20:32:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-26 20:32:39,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:39,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3244 [2020-10-26 20:32:39,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:39,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:39,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-26 20:32:39,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:40,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:40,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:40,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:40,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:40,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:40,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:32:40,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:40,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:40,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:40,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:40,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:40,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:40,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:40,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:40,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:40,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-26 20:32:40,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:40,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:40,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:40,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:40,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:40,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:40,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:40,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-26 20:32:40,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 53 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:32:40,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301773492] [2020-10-26 20:32:40,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:40,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:40,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632103138] [2020-10-26 20:32:40,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:40,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:40,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:40,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:40,494 INFO L87 Difference]: Start difference. First operand 1290 states and 1684 transitions. Second operand 8 states. [2020-10-26 20:32:40,646 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:41,511 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:32:42,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:42,650 INFO L93 Difference]: Finished difference Result 3144 states and 4214 transitions. [2020-10-26 20:32:42,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:32:42,652 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-10-26 20:32:42,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:42,670 INFO L225 Difference]: With dead ends: 3144 [2020-10-26 20:32:42,670 INFO L226 Difference]: Without dead ends: 1860 [2020-10-26 20:32:42,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:32:42,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-10-26 20:32:42,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1707. [2020-10-26 20:32:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-10-26 20:32:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2160 transitions. [2020-10-26 20:32:42,758 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2160 transitions. Word has length 195 [2020-10-26 20:32:42,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:42,760 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 2160 transitions. [2020-10-26 20:32:42,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2160 transitions. [2020-10-26 20:32:42,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-26 20:32:42,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:42,769 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:42,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:32:42,769 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:42,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1620580556, now seen corresponding path program 1 times [2020-10-26 20:32:42,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:42,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868555621] [2020-10-26 20:32:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:42,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:47,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-26 20:32:47,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-26 20:32:47,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:32:47,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:48,041 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:48,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:48,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:48,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:32:48,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:48,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:48,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:48,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:48,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:32:48,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:32:48,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:48,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-26 20:32:48,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:48,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:48,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 20:32:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:48,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:48,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:48,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:32:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:48,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:48,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-26 20:32:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:32:48,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:48,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:48,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:48,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:32:48,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:48,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 94 proven. 40 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:32:48,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868555621] [2020-10-26 20:32:48,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:48,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:48,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300712855] [2020-10-26 20:32:48,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:48,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:48,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:48,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:48,388 INFO L87 Difference]: Start difference. First operand 1707 states and 2160 transitions. Second operand 7 states. [2020-10-26 20:32:50,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:50,703 INFO L93 Difference]: Finished difference Result 4290 states and 5690 transitions. [2020-10-26 20:32:50,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:50,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-10-26 20:32:50,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:50,720 INFO L225 Difference]: With dead ends: 4290 [2020-10-26 20:32:50,720 INFO L226 Difference]: Without dead ends: 2589 [2020-10-26 20:32:50,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:50,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2020-10-26 20:32:50,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2553. [2020-10-26 20:32:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2553 states. [2020-10-26 20:32:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2553 states to 2553 states and 3248 transitions. [2020-10-26 20:32:50,827 INFO L78 Accepts]: Start accepts. Automaton has 2553 states and 3248 transitions. Word has length 230 [2020-10-26 20:32:50,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:50,827 INFO L481 AbstractCegarLoop]: Abstraction has 2553 states and 3248 transitions. [2020-10-26 20:32:50,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2553 states and 3248 transitions. [2020-10-26 20:32:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-26 20:32:50,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:50,838 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:50,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:32:50,839 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:50,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1087032365, now seen corresponding path program 1 times [2020-10-26 20:32:50,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:50,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656907957] [2020-10-26 20:32:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:50,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:55,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:55,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-26 20:32:55,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:32:55,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-26 20:32:55,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:32:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 20:32:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:56,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:56,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:56,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:56,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 20:32:56,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:56,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:56,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:56,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 20:32:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:56,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:56,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:32:56,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:56,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 20:32:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:32:56,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:56,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:56,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:32:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:56,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 102 proven. 50 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 20:32:56,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656907957] [2020-10-26 20:32:56,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:56,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:56,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076087026] [2020-10-26 20:32:56,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:56,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:56,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:56,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:56,556 INFO L87 Difference]: Start difference. First operand 2553 states and 3248 transitions. Second operand 8 states. [2020-10-26 20:32:56,710 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:57,449 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:32:58,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:58,640 INFO L93 Difference]: Finished difference Result 5400 states and 6977 transitions. [2020-10-26 20:32:58,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:58,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 233 [2020-10-26 20:32:58,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:58,658 INFO L225 Difference]: With dead ends: 5400 [2020-10-26 20:32:58,658 INFO L226 Difference]: Without dead ends: 2853 [2020-10-26 20:32:58,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:58,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2020-10-26 20:32:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2829. [2020-10-26 20:32:58,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2829 states. [2020-10-26 20:32:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 3569 transitions. [2020-10-26 20:32:58,765 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 3569 transitions. Word has length 233 [2020-10-26 20:32:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:58,765 INFO L481 AbstractCegarLoop]: Abstraction has 2829 states and 3569 transitions. [2020-10-26 20:32:58,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 3569 transitions. [2020-10-26 20:32:58,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-26 20:32:58,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:58,776 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:58,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:32:58,777 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:58,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:58,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1540602265, now seen corresponding path program 1 times [2020-10-26 20:32:58,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:58,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807682583] [2020-10-26 20:32:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:58,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:58,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:03,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-26 20:33:03,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:03,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4770 [2020-10-26 20:33:03,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:03,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:03,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:33:03,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:33:03,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:03,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:03,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:03,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:03,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:03,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:03,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:03,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:03,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:03,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:03,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:03,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:03,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:03,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:03,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:03,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:03,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:03,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:03,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:03,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:03,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:03,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:33:03,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:03,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:33:03,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:03,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:03,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:03,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:33:03,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:03,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:33:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:03,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:03,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:03,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:03,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:33:03,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:03,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:03,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:33:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:03,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:03,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:03,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:03,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:03,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:33:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:03,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:04,088 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 143 proven. 14 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-26 20:33:04,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807682583] [2020-10-26 20:33:04,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:04,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:04,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529578542] [2020-10-26 20:33:04,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:04,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:04,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:04,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:04,092 INFO L87 Difference]: Start difference. First operand 2829 states and 3569 transitions. Second operand 7 states. [2020-10-26 20:33:04,662 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:33:04,802 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:06,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:06,293 INFO L93 Difference]: Finished difference Result 6488 states and 8341 transitions. [2020-10-26 20:33:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:06,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-10-26 20:33:06,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:06,315 INFO L225 Difference]: With dead ends: 6488 [2020-10-26 20:33:06,315 INFO L226 Difference]: Without dead ends: 3526 [2020-10-26 20:33:06,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:33:06,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2020-10-26 20:33:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3371. [2020-10-26 20:33:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3371 states. [2020-10-26 20:33:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4128 transitions. [2020-10-26 20:33:06,445 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4128 transitions. Word has length 255 [2020-10-26 20:33:06,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:06,445 INFO L481 AbstractCegarLoop]: Abstraction has 3371 states and 4128 transitions. [2020-10-26 20:33:06,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:06,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4128 transitions. [2020-10-26 20:33:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-26 20:33:06,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:06,459 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:06,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:33:06,460 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:06,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1209368970, now seen corresponding path program 1 times [2020-10-26 20:33:06,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:06,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990515828] [2020-10-26 20:33:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:06,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:06,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:08,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:11,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-26 20:33:11,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:11,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-26 20:33:11,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:33:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:33:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:11,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:11,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:11,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:11,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:11,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:33:11,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:11,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:33:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:11,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:11,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 20:33:11,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:33:11,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:11,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:33:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:11,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:11,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:33:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:11,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:11,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:33:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:11,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:11,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:11,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:33:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:11,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 184 proven. 50 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-26 20:33:11,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990515828] [2020-10-26 20:33:11,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:11,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:11,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811961080] [2020-10-26 20:33:11,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:11,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:11,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:11,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:11,959 INFO L87 Difference]: Start difference. First operand 3371 states and 4128 transitions. Second operand 7 states. [2020-10-26 20:33:14,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:14,001 INFO L93 Difference]: Finished difference Result 7147 states and 8848 transitions. [2020-10-26 20:33:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:14,002 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2020-10-26 20:33:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:14,021 INFO L225 Difference]: With dead ends: 7147 [2020-10-26 20:33:14,021 INFO L226 Difference]: Without dead ends: 3782 [2020-10-26 20:33:14,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:14,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2020-10-26 20:33:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3367. [2020-10-26 20:33:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3367 states. [2020-10-26 20:33:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 4093 transitions. [2020-10-26 20:33:14,155 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 4093 transitions. Word has length 286 [2020-10-26 20:33:14,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:14,155 INFO L481 AbstractCegarLoop]: Abstraction has 3367 states and 4093 transitions. [2020-10-26 20:33:14,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 4093 transitions. [2020-10-26 20:33:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-26 20:33:14,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:14,170 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:14,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:33:14,170 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:14,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:14,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1153675350, now seen corresponding path program 1 times [2020-10-26 20:33:14,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:14,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013369272] [2020-10-26 20:33:14,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:14,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:14,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:14,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-26 20:33:16,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:16,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2618 [2020-10-26 20:33:16,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:33:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 20:33:16,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:17,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:17,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:17,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:17,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:17,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:17,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:33:17,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:33:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:33:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 214 proven. 29 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:33:17,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013369272] [2020-10-26 20:33:17,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:17,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:17,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563624424] [2020-10-26 20:33:17,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:17,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:17,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:17,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:17,337 INFO L87 Difference]: Start difference. First operand 3367 states and 4093 transitions. Second operand 7 states. [2020-10-26 20:33:17,471 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:33:17,709 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:19,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:19,863 INFO L93 Difference]: Finished difference Result 7027 states and 8572 transitions. [2020-10-26 20:33:19,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:19,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 308 [2020-10-26 20:33:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:19,867 INFO L225 Difference]: With dead ends: 7027 [2020-10-26 20:33:19,867 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:33:19,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:33:19,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:33:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:33:19,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:33:19,882 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 308 [2020-10-26 20:33:19,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:19,882 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:33:19,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:19,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:33:19,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:33:19,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:33:19,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:33:21,846 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 180 [2020-10-26 20:33:22,462 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 180 [2020-10-26 20:33:22,868 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 46 [2020-10-26 20:33:23,030 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 36 [2020-10-26 20:33:24,638 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 210 DAG size of output: 76 [2020-10-26 20:33:25,473 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 52 [2020-10-26 20:33:26,343 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 52 [2020-10-26 20:33:26,444 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:33:26,445 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:33:26,445 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:33:26,445 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:33:26,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:33:26,445 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:33:26,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:33:26,445 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,445 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,446 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,446 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,446 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:33:26,449 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:33:26,450 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:33:26,451 INFO L270 CegarLoopResult]: At program point L568(line 568) the Hoare annotation is: (let ((.cse5 (not (= 4 |old(~a16~0)|))) (.cse2 (not (<= 6 |old(~a16~0)|))) (.cse6 (not (= 15 |old(~a8~0)|))) (.cse1 (= 14 |old(~a8~0)|)) (.cse4 (not (= |old(~a7~0)| 0))) (.cse0 (not (= |old(~a20~0)| 1))) (.cse3 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse3 .cse4 .cse5) (not (<= |old(~a8~0)| 13)) (not (= 0 |old(~a20~0)|)) (or .cse0 .cse6 .cse3 .cse5 (= |old(~a7~0)| 1)) (or .cse0 .cse2 .cse6 .cse3) (or (not (= |old(~a17~0)| |old(~a20~0)|)) .cse0 .cse1 .cse3 .cse4) (or .cse0 (not (= 5 |old(~a16~0)|)) .cse3))) [2020-10-26 20:33:26,451 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:33:26,451 INFO L274 CegarLoopResult]: For program point L568-1(line 568) no Hoare annotation was computed. [2020-10-26 20:33:26,451 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:33:26,451 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,452 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:33:26,453 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,454 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,454 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,454 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,454 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,454 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:33:26,454 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:33:26,454 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,455 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:33:26,456 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:33:26,457 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,458 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,459 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,460 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse11 (= ~a7~0 |old(~a7~0)|)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse12 (= ~a20~0 |old(~a20~0)|)) (.cse2 (= ~a16~0 |old(~a16~0)|)) (.cse3 (= ~a8~0 |old(~a8~0)|))) (let ((.cse7 (= 14 |old(~a8~0)|)) (.cse4 (= ~a20~0 1)) (.cse10 (not (= |old(~a7~0)| 0))) (.cse5 (= ~a7~0 0)) (.cse8 (not (<= 6 |old(~a16~0)|))) (.cse6 (not (= |old(~a20~0)| 1))) (.cse1 (= ~a21~0 1)) (.cse13 (= ~a16~0 4)) (.cse15 (not (= 15 |old(~a8~0)|))) (.cse9 (not (= |old(~a21~0)| 1))) (.cse14 (not (= 4 |old(~a16~0)|))) (.cse16 (and .cse11 .cse0 (= ~a21~0 |old(~a21~0)|) .cse12 .cse2 .cse3))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10) (or (not (= |old(~a17~0)| |old(~a20~0)|)) .cse6 .cse7 .cse9 .cse10 (and .cse11 .cse2 .cse3 .cse4 (= ~a21~0 ~a20~0) (= ~a17~0 1))) (or .cse6 .cse9 .cse10 (and .cse0 .cse1 .cse12 .cse3 .cse13 .cse5) .cse14) (or (and (or .cse6 .cse8 .cse15 .cse9) (or .cse6 (not (= 5 |old(~a16~0)|)) .cse9)) (and .cse0 .cse11 .cse1 .cse12 .cse2 .cse3)) (or (not (= 0 |old(~a20~0)|)) .cse16) (or .cse6 (and .cse11 .cse0 .cse1 .cse12 (= ~a8~0 15) .cse13) .cse15 .cse9 .cse14 (= |old(~a7~0)| 1)) (or (not (<= |old(~a8~0)| 13)) .cse16)))) [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:33:26,461 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:33:26,462 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:33:26,463 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a8~0 15) (= ~a20~0 1) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:33:26,464 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:33:26,464 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:33:26,464 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:33:26,464 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (<= 6 ~a16~0)) (.cse4 (<= 1 |old(~a20~0)|)) (.cse5 (= ~a8~0 15)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 1)) (.cse6 (= ~a16~0 4)) (.cse3 (= ~a7~0 0))) (or (and .cse0 .cse1 (not (= 14 ~a8~0)) .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse2 .cse6 (not (= ~a7~0 1))) (not (= |old(~a21~0)| 1)) (and .cse0 .cse1 .cse4 .cse5 .cse2) (= ~a20~0 0) (not (= |old(~a17~0)| 1)) (and .cse1 .cse2 (= 5 ~a16~0)) (and .cse1 .cse2 .cse6 .cse3) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (<= ~a8~0 13) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:33:26,465 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:33:26,465 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:33:26,465 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (<= 6 ~a16~0)) (.cse4 (<= 1 |old(~a20~0)|)) (.cse5 (= ~a8~0 15)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 1)) (.cse6 (= ~a16~0 4)) (.cse3 (= ~a7~0 0))) (or (and .cse0 .cse1 (not (= 14 ~a8~0)) .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse2 .cse6 (not (= ~a7~0 1))) (not (= |old(~a21~0)| 1)) (and .cse0 .cse1 .cse4 .cse5 .cse2) (= ~a20~0 0) (not (= |old(~a17~0)| 1)) (and .cse1 .cse2 (= 5 ~a16~0)) (and .cse1 .cse2 .cse6 .cse3) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (<= ~a8~0 13) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:33:26,465 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:33:26,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:33:26 BoogieIcfgContainer [2020-10-26 20:33:26,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:33:26,493 INFO L168 Benchmark]: Toolchain (without parser) took 80567.59 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 904.9 MB). Free memory was 124.9 MB in the beginning and 621.8 MB in the end (delta: -496.9 MB). Peak memory consumption was 630.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:26,494 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 123.3 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:33:26,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 835.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 129.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:26,495 INFO L168 Benchmark]: Boogie Preprocessor took 128.98 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 125.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:26,497 INFO L168 Benchmark]: RCFGBuilder took 1366.87 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:26,499 INFO L168 Benchmark]: TraceAbstraction took 78219.26 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 904.9 MB). Free memory was 103.2 MB in the beginning and 621.8 MB in the end (delta: -518.6 MB). Peak memory consumption was 607.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:26,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 123.3 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 835.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 129.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.98 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 125.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1366.87 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 78219.26 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 904.9 MB). Free memory was 103.2 MB in the beginning and 621.8 MB in the end (delta: -518.6 MB). Peak memory consumption was 607.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((((6 <= a16 && a21 == 1) && !(14 == a8)) && a20 == 1) && a7 == 0) || (((((a21 == 1 && 1 <= \old(a20)) && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1))) || !(\old(a21) == 1)) || ((((6 <= a16 && a21 == 1) && 1 <= \old(a20)) && a8 == 15) && a20 == 1)) || a20 == 0) || !(\old(a17) == 1)) || ((a21 == 1 && a20 == 1) && 5 == a16)) || (((a21 == 1 && a20 == 1) && a16 == 4) && a7 == 0)) || !(\old(a20) == \old(a21))) || !(5 == \old(a16))) || !(15 == \old(a8))) || a8 <= 13) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 71.4s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 308 SDtfs, 4180 SDslu, 455 SDs, 0 SdLazy, 9624 SolverSat, 1567 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1252 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 347 PreInvPairs, 421 NumberOfFragments, 736 HoareAnnotationTreeSize, 347 FomulaSimplifications, 905202 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 50930 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 45.1s InterpolantComputationTime, 2290 NumberOfCodeBlocks, 2290 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2279 ConstructedInterpolants, 0 QuantifiedInterpolants, 1611334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 1247/1464 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...