/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 17:27:32,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 17:27:32,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 17:27:32,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 17:27:32,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 17:27:32,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 17:27:32,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 17:27:32,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 17:27:32,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 17:27:32,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 17:27:32,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 17:27:32,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 17:27:32,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 17:27:32,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 17:27:32,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 17:27:32,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 17:27:32,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 17:27:32,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 17:27:32,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 17:27:32,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 17:27:32,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 17:27:32,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 17:27:32,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 17:27:32,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 17:27:32,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 17:27:32,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 17:27:32,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 17:27:32,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 17:27:32,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 17:27:32,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 17:27:32,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 17:27:32,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 17:27:32,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 17:27:32,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 17:27:32,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 17:27:32,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 17:27:32,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 17:27:32,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 17:27:32,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 17:27:32,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 17:27:32,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 17:27:32,453 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 17:27:32,480 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 17:27:32,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 17:27:32,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 17:27:32,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 17:27:32,482 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 17:27:32,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 17:27:32,483 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 17:27:32,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 17:27:32,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 17:27:32,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 17:27:32,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 17:27:32,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 17:27:32,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 17:27:32,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 17:27:32,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 17:27:32,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 17:27:32,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 17:27:32,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 17:27:32,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 17:27:32,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 17:27:32,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 17:27:32,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 17:27:32,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 17:27:32,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 17:27:32,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 17:27:32,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 17:27:32,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 17:27:32,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 17:27:32,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 17:27:32,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 17:27:32,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 17:27:32,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 17:27:32,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 17:27:32,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 17:27:32,971 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 17:27:32,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label25.c [2020-10-27 17:27:33,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49e18e690/b931f26847cc49ff9693b5072480f6be/FLAGf61e4c7ed [2020-10-27 17:27:33,925 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 17:27:33,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label25.c [2020-10-27 17:27:33,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49e18e690/b931f26847cc49ff9693b5072480f6be/FLAGf61e4c7ed [2020-10-27 17:27:34,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49e18e690/b931f26847cc49ff9693b5072480f6be [2020-10-27 17:27:34,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 17:27:34,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 17:27:34,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 17:27:34,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 17:27:34,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 17:27:34,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:27:34" (1/1) ... [2020-10-27 17:27:34,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9562b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:34, skipping insertion in model container [2020-10-27 17:27:34,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:27:34" (1/1) ... [2020-10-27 17:27:34,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 17:27:34,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 17:27:34,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 17:27:34,743 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 17:27:34,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 17:27:35,006 INFO L208 MainTranslator]: Completed translation [2020-10-27 17:27:35,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35 WrapperNode [2020-10-27 17:27:35,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 17:27:35,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 17:27:35,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 17:27:35,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 17:27:35,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... [2020-10-27 17:27:35,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... [2020-10-27 17:27:35,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... [2020-10-27 17:27:35,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... [2020-10-27 17:27:35,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... [2020-10-27 17:27:35,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... [2020-10-27 17:27:35,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... [2020-10-27 17:27:35,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 17:27:35,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 17:27:35,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 17:27:35,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 17:27:35,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 17:27:35,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 17:27:35,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 17:27:35,285 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 17:27:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 17:27:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 17:27:35,287 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 17:27:35,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 17:27:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 17:27:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 17:27:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 17:27:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 17:27:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 17:27:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 17:27:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 17:27:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 17:27:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 17:27:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 17:27:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 17:27:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 17:27:37,029 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 17:27:37,029 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 17:27:37,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:27:37 BoogieIcfgContainer [2020-10-27 17:27:37,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 17:27:37,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 17:27:37,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 17:27:37,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 17:27:37,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:27:34" (1/3) ... [2020-10-27 17:27:37,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19882dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:27:37, skipping insertion in model container [2020-10-27 17:27:37,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:35" (2/3) ... [2020-10-27 17:27:37,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19882dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:27:37, skipping insertion in model container [2020-10-27 17:27:37,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:27:37" (3/3) ... [2020-10-27 17:27:37,049 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label25.c [2020-10-27 17:27:37,063 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 17:27:37,069 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 17:27:37,085 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 17:27:37,127 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 17:27:37,127 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 17:27:37,127 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 17:27:37,128 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 17:27:37,128 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 17:27:37,128 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 17:27:37,128 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 17:27:37,128 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 17:27:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-27 17:27:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 17:27:37,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:27:37,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:27:37,170 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:27:37,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:27:37,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1285494074, now seen corresponding path program 1 times [2020-10-27 17:27:37,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:27:37,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637586690] [2020-10-27 17:27:37,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:27:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:37,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:38,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:38,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 17:27:38,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:38,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-10-27 17:27:38,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 17:27:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 17:27:38,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 17:27:38,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 17:27:38,390 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 17:27:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:27:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:38,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:38,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:38,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:27:38,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:38,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 17:27:38,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:27:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:38,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 17:27:38,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:27:38,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637586690] [2020-10-27 17:27:38,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 17:27:38,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 17:27:38,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371990666] [2020-10-27 17:27:38,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:27:38,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:27:38,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:27:38,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:27:38,535 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-27 17:27:38,711 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 17:27:41,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:27:41,410 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-27 17:27:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:27:41,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2020-10-27 17:27:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:27:41,448 INFO L225 Difference]: With dead ends: 586 [2020-10-27 17:27:41,448 INFO L226 Difference]: Without dead ends: 303 [2020-10-27 17:27:41,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:27:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-27 17:27:41,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-27 17:27:41,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-27 17:27:41,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-27 17:27:41,590 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 71 [2020-10-27 17:27:41,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:27:41,593 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-27 17:27:41,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:27:41,593 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-27 17:27:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 17:27:41,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:27:41,609 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:27:41,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 17:27:41,609 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:27:41,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:27:41,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1488821687, now seen corresponding path program 1 times [2020-10-27 17:27:41,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:27:41,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957181798] [2020-10-27 17:27:41,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:27:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:41,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:41,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:42,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:42,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 17:27:42,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:27:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-10-27 17:27:42,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:27:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-27 17:27:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 17:27:42,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:27:42,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:27:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:42,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:42,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:27:42,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:42,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 17:27:42,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:27:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:27:42,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:42,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:27:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:42,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:42,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:42,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 17:27:42,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 17:27:42,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:27:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 17:27:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:42,958 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 62 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:27:42,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957181798] [2020-10-27 17:27:42,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:27:42,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:27:42,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929432773] [2020-10-27 17:27:42,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:27:42,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:27:42,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:27:42,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:27:42,963 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-27 17:27:44,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:27:44,687 INFO L93 Difference]: Finished difference Result 741 states and 1023 transitions. [2020-10-27 17:27:44,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:27:44,688 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-10-27 17:27:44,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:27:44,699 INFO L225 Difference]: With dead ends: 741 [2020-10-27 17:27:44,700 INFO L226 Difference]: Without dead ends: 448 [2020-10-27 17:27:44,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:27:44,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-27 17:27:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 444. [2020-10-27 17:27:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-27 17:27:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 576 transitions. [2020-10-27 17:27:44,756 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 576 transitions. Word has length 141 [2020-10-27 17:27:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:27:44,761 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 576 transitions. [2020-10-27 17:27:44,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:27:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 576 transitions. [2020-10-27 17:27:44,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-27 17:27:44,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:27:44,768 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:27:44,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 17:27:44,771 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:27:44,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:27:44,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1417097429, now seen corresponding path program 1 times [2020-10-27 17:27:44,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:27:44,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426328400] [2020-10-27 17:27:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:27:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:44,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:45,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:45,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:45,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 17:27:45,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:27:45,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-27 17:27:45,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:27:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-27 17:27:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 17:27:45,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:27:45,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:27:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:45,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:45,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:45,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:27:45,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:45,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 17:27:45,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:27:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:27:45,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:45,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:27:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:45,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:45,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:45,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 17:27:45,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:45,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 17:27:45,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:27:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 17:27:45,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:45,782 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 62 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:27:45,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426328400] [2020-10-27 17:27:45,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:27:45,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:27:45,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412198357] [2020-10-27 17:27:45,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:27:45,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:27:45,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:27:45,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:27:45,788 INFO L87 Difference]: Start difference. First operand 444 states and 576 transitions. Second operand 5 states. [2020-10-27 17:27:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:27:47,558 INFO L93 Difference]: Finished difference Result 1321 states and 1735 transitions. [2020-10-27 17:27:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:27:47,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-10-27 17:27:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:27:47,563 INFO L225 Difference]: With dead ends: 1321 [2020-10-27 17:27:47,563 INFO L226 Difference]: Without dead ends: 448 [2020-10-27 17:27:47,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:27:47,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-27 17:27:47,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 444. [2020-10-27 17:27:47,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-27 17:27:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 561 transitions. [2020-10-27 17:27:47,587 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 561 transitions. Word has length 150 [2020-10-27 17:27:47,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:27:47,588 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 561 transitions. [2020-10-27 17:27:47,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:27:47,588 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 561 transitions. [2020-10-27 17:27:47,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-27 17:27:47,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:27:47,591 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:27:47,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 17:27:47,591 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:27:47,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:27:47,592 INFO L82 PathProgramCache]: Analyzing trace with hash 769672861, now seen corresponding path program 1 times [2020-10-27 17:27:47,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:27:47,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281995899] [2020-10-27 17:27:47,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:27:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:47,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:47,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:48,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:48,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-27 17:27:48,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:27:48,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1138 [2020-10-27 17:27:48,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:27:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-27 17:27:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 17:27:48,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:48,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:27:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:48,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:48,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:48,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:27:48,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:48,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 17:27:48,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:27:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:27:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:27:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:49,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:49,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 17:27:49,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-27 17:27:49,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:27:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 17:27:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 62 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:27:49,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281995899] [2020-10-27 17:27:49,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:27:49,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:27:49,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698698527] [2020-10-27 17:27:49,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:27:49,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:27:49,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:27:49,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:27:49,186 INFO L87 Difference]: Start difference. First operand 444 states and 561 transitions. Second operand 5 states. [2020-10-27 17:27:50,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:27:50,755 INFO L93 Difference]: Finished difference Result 1321 states and 1701 transitions. [2020-10-27 17:27:50,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:27:50,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-10-27 17:27:50,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:27:50,765 INFO L225 Difference]: With dead ends: 1321 [2020-10-27 17:27:50,766 INFO L226 Difference]: Without dead ends: 883 [2020-10-27 17:27:50,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:27:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-27 17:27:50,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-27 17:27:50,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-27 17:27:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1095 transitions. [2020-10-27 17:27:50,816 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1095 transitions. Word has length 186 [2020-10-27 17:27:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:27:50,817 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1095 transitions. [2020-10-27 17:27:50,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:27:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1095 transitions. [2020-10-27 17:27:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-27 17:27:50,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:27:50,821 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:27:50,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 17:27:50,821 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:27:50,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:27:50,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1101768820, now seen corresponding path program 1 times [2020-10-27 17:27:50,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:27:50,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384526993] [2020-10-27 17:27:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:27:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:50,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:51,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:51,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:52,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:52,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-27 17:27:52,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 17:27:52,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1707 [2020-10-27 17:27:52,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:27:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-27 17:27:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 17:27:52,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:52,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:27:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:52,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:52,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:52,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:27:52,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 17:27:52,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:27:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:27:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:52,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:27:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:52,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:52,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:52,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 17:27:52,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:52,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 17:27:52,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:27:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:27:52,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:52,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 17:27:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:52,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:52,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:52,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-27 17:27:52,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 17:27:52,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:27:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 17:27:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-27 17:27:53,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384526993] [2020-10-27 17:27:53,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:27:53,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:27:53,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364285456] [2020-10-27 17:27:53,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:27:53,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:27:53,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:27:53,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:27:53,051 INFO L87 Difference]: Start difference. First operand 879 states and 1095 transitions. Second operand 5 states. [2020-10-27 17:27:54,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:27:54,194 INFO L93 Difference]: Finished difference Result 1772 states and 2218 transitions. [2020-10-27 17:27:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:27:54,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 223 [2020-10-27 17:27:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:27:54,202 INFO L225 Difference]: With dead ends: 1772 [2020-10-27 17:27:54,205 INFO L226 Difference]: Without dead ends: 883 [2020-10-27 17:27:54,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:27:54,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-27 17:27:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-27 17:27:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-27 17:27:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1089 transitions. [2020-10-27 17:27:54,265 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1089 transitions. Word has length 223 [2020-10-27 17:27:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:27:54,265 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1089 transitions. [2020-10-27 17:27:54,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:27:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1089 transitions. [2020-10-27 17:27:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-27 17:27:54,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:27:54,272 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:27:54,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 17:27:54,273 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:27:54,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:27:54,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1797678046, now seen corresponding path program 1 times [2020-10-27 17:27:54,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:27:54,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200416253] [2020-10-27 17:27:54,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:27:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:54,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:54,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:55,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:55,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-27 17:27:55,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:27:55,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1458 [2020-10-27 17:27:55,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:55,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:27:55,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 199 [2020-10-27 17:27:55,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 17:27:55,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:55,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:27:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:55,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:55,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:55,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:27:55,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 17:27:55,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:27:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:27:55,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:27:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:55,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:55,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:55,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 17:27:55,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 17:27:55,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:27:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:27:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 17:27:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:56,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:56,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:27:56,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 17:27:56,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:27:56,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 17:27:56,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:27:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:27:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:27:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 17:27:56,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:27:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-27 17:27:56,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200416253] [2020-10-27 17:27:56,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:27:56,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:27:56,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277882542] [2020-10-27 17:27:56,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:27:56,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:27:56,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:27:56,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:27:56,211 INFO L87 Difference]: Start difference. First operand 879 states and 1089 transitions. Second operand 5 states. [2020-10-27 17:27:57,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:27:57,835 INFO L93 Difference]: Finished difference Result 2046 states and 2575 transitions. [2020-10-27 17:27:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:27:57,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 258 [2020-10-27 17:27:57,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:27:57,844 INFO L225 Difference]: With dead ends: 2046 [2020-10-27 17:27:57,844 INFO L226 Difference]: Without dead ends: 1173 [2020-10-27 17:27:57,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:27:57,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2020-10-27 17:27:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1169. [2020-10-27 17:27:57,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2020-10-27 17:27:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1422 transitions. [2020-10-27 17:27:57,890 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1422 transitions. Word has length 258 [2020-10-27 17:27:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:27:57,891 INFO L481 AbstractCegarLoop]: Abstraction has 1169 states and 1422 transitions. [2020-10-27 17:27:57,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:27:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1422 transitions. [2020-10-27 17:27:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-10-27 17:27:57,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:27:57,899 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:27:57,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 17:27:57,900 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:27:57,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:27:57,900 INFO L82 PathProgramCache]: Analyzing trace with hash -880602813, now seen corresponding path program 1 times [2020-10-27 17:27:57,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:27:57,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625018639] [2020-10-27 17:27:57,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:27:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:27:58,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:58,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:27:58,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:01,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:02,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:02,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-27 17:28:02,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 17:28:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4963 [2020-10-27 17:28:02,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-27 17:28:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 17:28:02,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:03,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:03,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:03,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:03,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:03,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 17:28:03,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:03,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:03,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:03,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:03,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:03,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 17:28:03,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 17:28:03,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:03,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 17:28:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:03,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:03,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:03,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 17:28:03,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 17:28:03,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:03,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-27 17:28:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:03,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:03,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:03,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 17:28:03,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:03,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-27 17:28:03,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:03,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 17:28:03,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 192 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-27 17:28:03,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625018639] [2020-10-27 17:28:03,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:03,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:03,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171058424] [2020-10-27 17:28:03,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:03,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:03,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:03,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:03,741 INFO L87 Difference]: Start difference. First operand 1169 states and 1422 transitions. Second operand 5 states. [2020-10-27 17:28:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:04,872 INFO L93 Difference]: Finished difference Result 2206 states and 2652 transitions. [2020-10-27 17:28:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:04,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 380 [2020-10-27 17:28:04,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:04,874 INFO L225 Difference]: With dead ends: 2206 [2020-10-27 17:28:04,874 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 17:28:04,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:04,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 17:28:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 17:28:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 17:28:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 17:28:04,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 380 [2020-10-27 17:28:04,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:04,881 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 17:28:04,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:04,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 17:28:04,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 17:28:04,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 17:28:04,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 17:28:05,049 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 36 [2020-10-27 17:28:05,457 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-10-27 17:28:06,070 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 64 [2020-10-27 17:28:06,238 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-10-27 17:28:06,347 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-10-27 17:28:06,351 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 17:28:06,351 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 17:28:06,352 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 17:28:06,352 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 17:28:06,352 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 17:28:06,352 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-27 17:28:06,353 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 17:28:06,353 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-27 17:28:06,353 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-27 17:28:06,356 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-27 17:28:06,356 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-27 17:28:06,356 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-27 17:28:06,356 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,357 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-27 17:28:06,358 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-27 17:28:06,359 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-27 17:28:06,360 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-27 17:28:06,361 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,362 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-27 17:28:06,363 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,364 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,365 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,366 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-27 17:28:06,367 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-27 17:28:06,368 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-27 17:28:06,369 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,370 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,371 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,371 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,371 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-27 17:28:06,371 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse4 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse3 (= ~a19~0 |old(~a19~0)|) .cse4)) (.cse1 (not (= 14 ~a4~0))) (.cse2 (not (= ~a12~0 0)))) (and (or .cse0 (not (= 10 |old(~a19~0)|))) (or .cse0 (not (<= 2 |old(~a10~0)|))) (or .cse0 (not (= 8 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or (not (<= |old(~a19~0)| 7)) (not (<= 7 |old(~a19~0)|)) (not (<= 221 |old(~a1~0)|)) .cse0 .cse1 (not (<= 1 |old(~a10~0)|)) .cse2) (or .cse0 (not (= 0 |old(~a10~0)|))) (or (and (= 7 ~a19~0) .cse3 .cse4) (not (= |old(~a10~0)| 1)) .cse1 (not (<= |old(~a1~0)| 33)) (not (= 7 |old(~a19~0)|)) (not (<= 0 (+ |old(~a1~0)| 12))) .cse2)))) [2020-10-27 17:28:06,371 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-27 17:28:06,371 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-27 17:28:06,371 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,372 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-27 17:28:06,373 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,374 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L270 CegarLoopResult]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (not (= 14 ~a4~0))) (.cse1 (not (= ~a12~0 0)))) (and (or (not (= |old(~a10~0)| 1)) .cse0 (not (<= |old(~a1~0)| 33)) (not (= 7 |old(~a19~0)|)) (not (<= 0 (+ |old(~a1~0)| 12))) .cse1) (or (not (<= |old(~a19~0)| 7)) (not (<= 7 |old(~a19~0)|)) (not (<= 221 |old(~a1~0)|)) .cse0 (not (<= 1 |old(~a10~0)|)) .cse1) (not (= 9 |old(~a19~0)|)) (not (<= 2 |old(~a10~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|)) (not (= 10 |old(~a19~0)|)))) [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-27 17:28:06,375 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 17:28:06,376 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9)) [2020-10-27 17:28:06,376 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 17:28:06,376 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 17:28:06,377 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2020-10-27 17:28:06,377 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-27 17:28:06,377 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (= ~a19~0 8) (and (<= 0 (+ ~a1~0 12)) (= ~a10~0 1) (= 7 ~a19~0) .cse0 (<= ~a1~0 33) .cse1) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a19~0 9) (= ~a19~0 10) (not (= 0 |old(~a10~0)|)) (and (<= ~a19~0 7) .cse0 (<= 7 ~a19~0) (<= 1 ~a10~0) .cse1 (<= 221 ~a1~0)) (<= 2 ~a10~0))) [2020-10-27 17:28:06,377 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-27 17:28:06,377 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-27 17:28:06,377 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (= ~a19~0 8) (and (<= 0 (+ ~a1~0 12)) (= ~a10~0 1) (= 7 ~a19~0) .cse0 (<= ~a1~0 33) .cse1) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a19~0 9) (= ~a19~0 10) (not (= 0 |old(~a10~0)|)) (and (<= ~a19~0 7) .cse0 (<= 7 ~a19~0) (<= 1 ~a10~0) .cse1 (<= 221 ~a1~0)) (<= 2 ~a10~0))) [2020-10-27 17:28:06,377 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-27 17:28:06,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:28:06 BoogieIcfgContainer [2020-10-27 17:28:06,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 17:28:06,399 INFO L168 Benchmark]: Toolchain (without parser) took 32237.84 ms. Allocated memory was 125.8 MB in the beginning and 594.5 MB in the end (delta: 468.7 MB). Free memory was 99.3 MB in the beginning and 489.9 MB in the end (delta: -390.7 MB). Peak memory consumption was 353.1 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:06,400 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 17:28:06,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 837.00 ms. Allocated memory was 125.8 MB in the beginning and 163.6 MB in the end (delta: 37.7 MB). Free memory was 98.6 MB in the beginning and 142.5 MB in the end (delta: -43.9 MB). Peak memory consumption was 31.6 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:06,402 INFO L168 Benchmark]: Boogie Preprocessor took 182.09 ms. Allocated memory is still 163.6 MB. Free memory was 142.5 MB in the beginning and 138.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:06,402 INFO L168 Benchmark]: RCFGBuilder took 1843.01 ms. Allocated memory is still 163.6 MB. Free memory was 137.8 MB in the beginning and 85.2 MB in the end (delta: 52.6 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:06,403 INFO L168 Benchmark]: TraceAbstraction took 29356.92 ms. Allocated memory was 163.6 MB in the beginning and 594.5 MB in the end (delta: 431.0 MB). Free memory was 85.2 MB in the beginning and 489.9 MB in the end (delta: -404.7 MB). Peak memory consumption was 301.0 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:06,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 837.00 ms. Allocated memory was 125.8 MB in the beginning and 163.6 MB in the end (delta: 37.7 MB). Free memory was 98.6 MB in the beginning and 142.5 MB in the end (delta: -43.9 MB). Peak memory consumption was 31.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 182.09 ms. Allocated memory is still 163.6 MB. Free memory was 142.5 MB in the beginning and 138.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1843.01 ms. Allocated memory is still 163.6 MB. Free memory was 137.8 MB in the beginning and 85.2 MB in the end (delta: 52.6 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29356.92 ms. Allocated memory was 163.6 MB in the beginning and 594.5 MB in the end (delta: 431.0 MB). Free memory was 85.2 MB in the beginning and 489.9 MB in the end (delta: -404.7 MB). Peak memory consumption was 301.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((a19 == 8 || (((((0 <= a1 + 12 && a10 == 1) && 7 == a19) && 14 == a4) && a1 <= 33) && a12 == 0)) || !(9 == \old(a19))) || a10 == 0) || a19 == 9) || a19 == 10) || !(0 == \old(a10))) || (((((a19 <= 7 && 14 == a4) && 7 <= a19) && 1 <= a10) && a12 == 0) && 221 <= a1)) || 2 <= a10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.7s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 171 SDtfs, 1879 SDslu, 142 SDs, 0 SdLazy, 4614 SolverSat, 524 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1169occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 97 PreInvPairs, 123 NumberOfFragments, 438 HoareAnnotationTreeSize, 97 FomulaSimplifications, 18766 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 909 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 1409 NumberOfCodeBlocks, 1409 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1402 ConstructedInterpolants, 0 QuantifiedInterpolants, 767315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1021/1031 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...