/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:47:31,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:47:31,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:47:31,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:47:31,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:47:31,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:47:31,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:47:31,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:47:31,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:47:31,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:47:31,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:47:31,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:47:31,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:47:31,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:47:31,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:47:31,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:47:31,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:47:31,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:47:31,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:47:31,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:47:31,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:47:31,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:47:31,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:47:31,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:47:31,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:47:31,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:47:31,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:47:31,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:47:31,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:47:31,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:47:31,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:47:31,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:47:31,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:47:31,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:47:31,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:47:31,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:47:31,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:47:31,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:47:31,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:47:31,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:47:31,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:47:31,424 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 [2020-10-29 04:47:31,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:47:31,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:47:31,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:47:31,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:47:31,487 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:47:31,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:47:31,488 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:47:31,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:47:31,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:47:31,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:47:31,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:47:31,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:47:31,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:47:31,490 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:47:31,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:47:31,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:47:31,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:47:31,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:47:31,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:47:31,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:47:31,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:47:31,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:47:31,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:47:31,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:47:31,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:47:31,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:47:31,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:47:31,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:47:31,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:47:31,495 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:47:31,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:47:31,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:47:31,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:47:31,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:47:31,993 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:47:31,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-10-29 04:47:32,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d86a91cce/24d239ee1fb24ab5baf55fe4037c7fbf/FLAGb7bc7e51c [2020-10-29 04:47:32,881 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:47:32,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-10-29 04:47:32,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d86a91cce/24d239ee1fb24ab5baf55fe4037c7fbf/FLAGb7bc7e51c [2020-10-29 04:47:33,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d86a91cce/24d239ee1fb24ab5baf55fe4037c7fbf [2020-10-29 04:47:33,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:47:33,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:47:33,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:47:33,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:47:33,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:47:33,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a7e491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33, skipping insertion in model container [2020-10-29 04:47:33,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:47:33,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:47:33,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:47:33,677 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:47:33,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:47:33,842 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:47:33,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33 WrapperNode [2020-10-29 04:47:33,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:47:33,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:47:33,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:47:33,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:47:33,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... [2020-10-29 04:47:33,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:47:33,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:47:33,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:47:33,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:47:33,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:47:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:47:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:47:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:47:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:47:34,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:47:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:47:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:47:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:47:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:47:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:47:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:47:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:47:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:47:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:47:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:47:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:47:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:47:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:47:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:47:35,267 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:47:35,268 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:47:35,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:47:35 BoogieIcfgContainer [2020-10-29 04:47:35,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:47:35,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:47:35,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:47:35,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:47:35,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:47:33" (1/3) ... [2020-10-29 04:47:35,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60638a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:47:35, skipping insertion in model container [2020-10-29 04:47:35,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:33" (2/3) ... [2020-10-29 04:47:35,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60638a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:47:35, skipping insertion in model container [2020-10-29 04:47:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:47:35" (3/3) ... [2020-10-29 04:47:35,279 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label46.c [2020-10-29 04:47:35,292 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:47:35,297 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:47:35,310 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:47:35,335 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:47:35,335 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:47:35,335 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:47:35,335 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:47:35,335 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:47:35,336 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:47:35,336 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:47:35,336 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:47:35,361 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-29 04:47:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 04:47:35,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:35,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:35,378 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:35,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1336459021, now seen corresponding path program 1 times [2020-10-29 04:47:35,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:35,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054592605] [2020-10-29 04:47:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:35,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:38,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:38,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 04:47:38,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:47:38,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2331 [2020-10-29 04:47:38,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:38,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:47:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:47:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 04:47:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:47:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:38,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:38,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:38,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:38,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:38,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:47:38,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:38,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:47:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:47:38,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054592605] [2020-10-29 04:47:38,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:47:38,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:47:38,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626051826] [2020-10-29 04:47:38,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:38,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:38,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:38,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:38,413 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-29 04:47:40,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:40,969 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-10-29 04:47:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:47:40,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-10-29 04:47:40,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:40,988 INFO L225 Difference]: With dead ends: 703 [2020-10-29 04:47:40,988 INFO L226 Difference]: Without dead ends: 424 [2020-10-29 04:47:40,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:47:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-29 04:47:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-29 04:47:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-29 04:47:41,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 586 transitions. [2020-10-29 04:47:41,084 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 586 transitions. Word has length 119 [2020-10-29 04:47:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:41,085 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 586 transitions. [2020-10-29 04:47:41,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 586 transitions. [2020-10-29 04:47:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-29 04:47:41,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:41,094 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:41,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:47:41,095 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:41,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:41,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1022234041, now seen corresponding path program 1 times [2020-10-29 04:47:41,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:41,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154669377] [2020-10-29 04:47:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:41,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:41,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:41,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:42,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:42,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:42,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 04:47:42,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:47:42,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1482 [2020-10-29 04:47:42,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:42,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:47:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 04:47:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 04:47:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:42,820 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 04:47:42,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:42,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:42,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:42,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:42,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:47:42,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:42,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:42,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:42,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:42,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:42,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:42,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:42,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:42,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:42,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 04:47:42,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:47:42,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:42,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 04:47:42,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:42,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:47:42,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154669377] [2020-10-29 04:47:42,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:42,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:47:42,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398696180] [2020-10-29 04:47:42,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:42,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:42,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:42,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:42,932 INFO L87 Difference]: Start difference. First operand 418 states and 586 transitions. Second operand 5 states. [2020-10-29 04:47:43,065 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 04:47:44,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:44,463 INFO L93 Difference]: Finished difference Result 1247 states and 1787 transitions. [2020-10-29 04:47:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:44,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-29 04:47:44,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:44,485 INFO L225 Difference]: With dead ends: 1247 [2020-10-29 04:47:44,485 INFO L226 Difference]: Without dead ends: 835 [2020-10-29 04:47:44,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:47:44,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-29 04:47:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 829. [2020-10-29 04:47:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-10-29 04:47:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1127 transitions. [2020-10-29 04:47:44,577 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1127 transitions. Word has length 129 [2020-10-29 04:47:44,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:44,578 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 1127 transitions. [2020-10-29 04:47:44,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:44,578 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1127 transitions. [2020-10-29 04:47:44,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 04:47:44,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:44,586 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:44,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:47:44,586 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:44,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:44,587 INFO L82 PathProgramCache]: Analyzing trace with hash -126736856, now seen corresponding path program 1 times [2020-10-29 04:47:44,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:44,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472765349] [2020-10-29 04:47:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:44,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:44,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:44,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:49,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:49,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 04:47:49,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:47:49,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 04:47:49,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:49,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:47:49,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-29 04:47:49,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 04:47:49,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:47:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:50,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:50,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:50,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:50,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:47:50,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:50,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:50,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:50,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:50,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:50,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:50,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 04:47:50,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 04:47:50,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:50,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:50,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:50,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:50,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 04:47:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:50,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:50,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 04:47:50,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:50,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 04:47:50,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:50,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 04:47:50,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 04:47:51,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472765349] [2020-10-29 04:47:51,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:51,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:47:51,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749578153] [2020-10-29 04:47:51,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:47:51,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:51,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:47:51,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:47:51,027 INFO L87 Difference]: Start difference. First operand 829 states and 1127 transitions. Second operand 14 states. [2020-10-29 04:47:51,888 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-29 04:47:52,288 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-29 04:47:52,912 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2020-10-29 04:47:53,417 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2020-10-29 04:47:53,986 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-29 04:47:54,383 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2020-10-29 04:47:54,910 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-29 04:47:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:55,218 INFO L93 Difference]: Finished difference Result 1714 states and 2378 transitions. [2020-10-29 04:47:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:47:55,220 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 152 [2020-10-29 04:47:55,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:55,233 INFO L225 Difference]: With dead ends: 1714 [2020-10-29 04:47:55,234 INFO L226 Difference]: Without dead ends: 891 [2020-10-29 04:47:55,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:47:55,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-10-29 04:47:55,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 883. [2020-10-29 04:47:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2020-10-29 04:47:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1190 transitions. [2020-10-29 04:47:55,287 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1190 transitions. Word has length 152 [2020-10-29 04:47:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:55,289 INFO L481 AbstractCegarLoop]: Abstraction has 883 states and 1190 transitions. [2020-10-29 04:47:55,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:47:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1190 transitions. [2020-10-29 04:47:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 04:47:55,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:55,295 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:55,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:47:55,295 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:55,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1206529876, now seen corresponding path program 1 times [2020-10-29 04:47:55,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:55,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151689860] [2020-10-29 04:47:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:55,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:55,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:55,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:56,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:00,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:00,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-29 04:48:00,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:48:00,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 04:48:00,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:00,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:48:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-29 04:48:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 04:48:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:00,937 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-29 04:48:01,165 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-29 04:48:01,418 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-29 04:48:01,744 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 53 [2020-10-29 04:48:02,024 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2020-10-29 04:48:02,364 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 45 [2020-10-29 04:48:02,651 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 41 [2020-10-29 04:48:02,898 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 38 [2020-10-29 04:48:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:03,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:03,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:03,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:03,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:03,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:48:03,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:03,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:03,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:03,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:03,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 04:48:03,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:48:03,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:03,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:03,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 04:48:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:03,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:03,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:03,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 04:48:03,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:03,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 04:48:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:03,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:48:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 04:48:03,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151689860] [2020-10-29 04:48:03,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:03,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:48:03,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420233680] [2020-10-29 04:48:03,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:48:03,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:03,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:48:03,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:48:03,366 INFO L87 Difference]: Start difference. First operand 883 states and 1190 transitions. Second operand 13 states. [2020-10-29 04:48:04,109 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 04:48:04,406 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 04:48:04,987 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 147 [2020-10-29 04:48:05,940 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 144 [2020-10-29 04:48:06,568 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 140 [2020-10-29 04:48:07,326 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 137 [2020-10-29 04:48:08,131 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 133 [2020-10-29 04:48:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:08,364 INFO L93 Difference]: Finished difference Result 1831 states and 2526 transitions. [2020-10-29 04:48:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:48:08,366 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 158 [2020-10-29 04:48:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:08,377 INFO L225 Difference]: With dead ends: 1831 [2020-10-29 04:48:08,377 INFO L226 Difference]: Without dead ends: 954 [2020-10-29 04:48:08,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:48:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-10-29 04:48:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 950. [2020-10-29 04:48:08,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2020-10-29 04:48:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1271 transitions. [2020-10-29 04:48:08,435 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1271 transitions. Word has length 158 [2020-10-29 04:48:08,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:08,435 INFO L481 AbstractCegarLoop]: Abstraction has 950 states and 1271 transitions. [2020-10-29 04:48:08,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:48:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1271 transitions. [2020-10-29 04:48:08,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-29 04:48:08,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:08,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:48:08,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:48:08,444 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:08,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:08,445 INFO L82 PathProgramCache]: Analyzing trace with hash -849026806, now seen corresponding path program 1 times [2020-10-29 04:48:08,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:08,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619014031] [2020-10-29 04:48:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:08,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:08,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:09,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:10,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-29 04:48:10,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:48:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1688 [2020-10-29 04:48:10,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:10,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-29 04:48:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 04:48:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:10,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:10,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:10,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:10,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:10,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:10,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:48:10,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:10,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:10,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:10,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:10,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:10,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:10,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:10,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-29 04:48:10,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:10,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 04:48:10,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:10,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 04:48:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:48:10,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619014031] [2020-10-29 04:48:10,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:10,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:48:10,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135294179] [2020-10-29 04:48:10,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:48:10,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:10,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:48:10,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:10,576 INFO L87 Difference]: Start difference. First operand 950 states and 1271 transitions. Second operand 5 states. [2020-10-29 04:48:10,729 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 04:48:12,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:12,136 INFO L93 Difference]: Finished difference Result 2577 states and 3543 transitions. [2020-10-29 04:48:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:12,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-10-29 04:48:12,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:12,153 INFO L225 Difference]: With dead ends: 2577 [2020-10-29 04:48:12,153 INFO L226 Difference]: Without dead ends: 1633 [2020-10-29 04:48:12,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:48:12,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2020-10-29 04:48:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1361. [2020-10-29 04:48:12,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2020-10-29 04:48:12,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1806 transitions. [2020-10-29 04:48:12,227 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1806 transitions. Word has length 172 [2020-10-29 04:48:12,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:12,228 INFO L481 AbstractCegarLoop]: Abstraction has 1361 states and 1806 transitions. [2020-10-29 04:48:12,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:48:12,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1806 transitions. [2020-10-29 04:48:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-29 04:48:12,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:12,233 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:48:12,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:48:12,234 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:12,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:12,234 INFO L82 PathProgramCache]: Analyzing trace with hash -530107755, now seen corresponding path program 1 times [2020-10-29 04:48:12,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:12,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507421980] [2020-10-29 04:48:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:12,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:12,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:12,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:13,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:15,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:17,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:17,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-29 04:48:17,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:48:17,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:48:17,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:17,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 04:48:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 04:48:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:17,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:17,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:17,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:17,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 04:48:17,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:17,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:17,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:17,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:17,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:17,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:17,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:17,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:48:17,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:48:17,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:17,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:17,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:48:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:17,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:17,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:17,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:48:17,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:17,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:48:17,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:17,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:17,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:17,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:48:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:17,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:17,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:17,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 04:48:17,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 04:48:17,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:17,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:17,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:17,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:17,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 04:48:17,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-29 04:48:17,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507421980] [2020-10-29 04:48:17,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:17,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:48:17,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845375434] [2020-10-29 04:48:17,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:48:17,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:17,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:48:17,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:17,796 INFO L87 Difference]: Start difference. First operand 1361 states and 1806 transitions. Second operand 5 states. [2020-10-29 04:48:18,700 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 04:48:19,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:19,294 INFO L93 Difference]: Finished difference Result 2666 states and 3564 transitions. [2020-10-29 04:48:19,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:19,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 197 [2020-10-29 04:48:19,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:19,296 INFO L225 Difference]: With dead ends: 2666 [2020-10-29 04:48:19,297 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:48:19,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:48:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:48:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:48:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:48:19,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:48:19,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 197 [2020-10-29 04:48:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:19,305 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:48:19,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:48:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:48:19,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:48:19,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:48:19,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:48:19,718 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 24 [2020-10-29 04:48:19,936 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 28 [2020-10-29 04:48:20,683 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 46 [2020-10-29 04:48:20,870 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 04:48:20,871 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 04:48:20,871 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 04:48:20,871 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 04:48:20,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:48:20,871 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-29 04:48:20,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-29 04:48:20,872 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-29 04:48:20,873 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-29 04:48:20,874 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,875 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-29 04:48:20,876 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,877 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-29 04:48:20,878 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-29 04:48:20,879 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-29 04:48:20,880 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,881 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,882 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-29 04:48:20,882 INFO L270 CegarLoopResult]: At program point L514(line 514) the Hoare annotation is: (and (not (= |old(~a17~0)| 1)) (= |old(~a8~0)| 13) (not (= |old(~a20~0)| 1)) (or (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= 4 |old(~a16~0)|)) (= |old(~a7~0)| 1))) [2020-10-29 04:48:20,882 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-29 04:48:20,882 INFO L274 CegarLoopResult]: For program point L514-1(line 514) no Hoare annotation was computed. [2020-10-29 04:48:20,882 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-29 04:48:20,882 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-29 04:48:20,882 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-29 04:48:20,882 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-29 04:48:20,883 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-29 04:48:20,884 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-29 04:48:20,885 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-29 04:48:20,886 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-29 04:48:20,886 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-29 04:48:20,886 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,886 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,886 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|))) (let ((.cse0 (= |old(~a8~0)| 13)) (.cse4 (and .cse1 .cse2 (= ~a21~0 |old(~a21~0)|) .cse3 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)))) (and (or (not .cse0) (and .cse1 .cse2 (= ~a21~0 1) .cse3 (= ~a8~0 13) (= ~a16~0 4)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= 4 |old(~a16~0)|)) (= |old(~a7~0)| 1)) (or .cse0 .cse4) (or (not (= |old(~a17~0)| 1)) .cse4) (or (not (= |old(~a20~0)| 1)) .cse4)))) [2020-10-29 04:48:20,886 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,886 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,886 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-29 04:48:20,887 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-29 04:48:20,888 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,889 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-29 04:48:20,890 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:48:20,891 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a20~0 1) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-29 04:48:20,891 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:48:20,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:48:20,892 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-10-29 04:48:20,892 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:48:20,892 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= ~a8~0 13)) (= ~a20~0 1) (and (= ~a21~0 1) (= ~a12~0 8) (= ~a16~0 4) (not (= ~a7~0 1))) (= ~a17~0 1)) [2020-10-29 04:48:20,892 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-29 04:48:20,892 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-29 04:48:20,892 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= ~a8~0 13)) (= ~a20~0 1) (and (= ~a21~0 1) (= ~a12~0 8) (= ~a16~0 4) (not (= ~a7~0 1))) (= ~a17~0 1)) [2020-10-29 04:48:20,892 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:48:20,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:48:20 BoogieIcfgContainer [2020-10-29 04:48:20,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:48:20,917 INFO L168 Benchmark]: Toolchain (without parser) took 47808.29 ms. Allocated memory was 165.7 MB in the beginning and 626.0 MB in the end (delta: 460.3 MB). Free memory was 138.7 MB in the beginning and 366.8 MB in the end (delta: -228.1 MB). Peak memory consumption was 375.0 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:20,917 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 84.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:48:20,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.69 ms. Allocated memory is still 165.7 MB. Free memory was 138.2 MB in the beginning and 111.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:20,919 INFO L168 Benchmark]: Boogie Preprocessor took 119.99 ms. Allocated memory is still 165.7 MB. Free memory was 111.4 MB in the beginning and 106.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:20,920 INFO L168 Benchmark]: RCFGBuilder took 1305.09 ms. Allocated memory is still 165.7 MB. Free memory was 106.4 MB in the beginning and 143.0 MB in the end (delta: -36.6 MB). Peak memory consumption was 55.7 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:20,921 INFO L168 Benchmark]: TraceAbstraction took 45642.84 ms. Allocated memory was 165.7 MB in the beginning and 626.0 MB in the end (delta: 460.3 MB). Free memory was 142.5 MB in the beginning and 366.8 MB in the end (delta: -224.3 MB). Peak memory consumption was 378.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:20,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 84.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 725.69 ms. Allocated memory is still 165.7 MB. Free memory was 138.2 MB in the beginning and 111.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.99 ms. Allocated memory is still 165.7 MB. Free memory was 111.4 MB in the beginning and 106.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1305.09 ms. Allocated memory is still 165.7 MB. Free memory was 106.4 MB in the beginning and 143.0 MB in the end (delta: -36.6 MB). Peak memory consumption was 55.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 45642.84 ms. Allocated memory was 165.7 MB in the beginning and 626.0 MB in the end (delta: 460.3 MB). Free memory was 142.5 MB in the beginning and 366.8 MB in the end (delta: -224.3 MB). Peak memory consumption was 378.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((!(\old(a17) == 1) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || !(a8 == 13)) || a20 == 1) || (((a21 == 1 && a12 == 8) && a16 == 4) && !(a7 == 1))) || a17 == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 43.9s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 149 SDtfs, 2234 SDslu, 167 SDs, 0 SdLazy, 4156 SolverSat, 581 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1361occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 296 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 108 PreInvPairs, 132 NumberOfFragments, 345 HoareAnnotationTreeSize, 108 FomulaSimplifications, 10091 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1796 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 25.9s InterpolantComputationTime, 927 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 921 ConstructedInterpolants, 0 QuantifiedInterpolants, 1617499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 226/235 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...