/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:33:29,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:33:29,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:33:29,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:33:29,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:33:29,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:33:29,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:33:29,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:33:29,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:33:29,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:33:29,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:33:29,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:33:29,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:33:29,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:33:29,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:33:29,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:33:29,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:33:29,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:33:29,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:33:29,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:33:29,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:33:29,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:33:29,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:33:29,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:33:29,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:33:29,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:33:29,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:33:29,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:33:29,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:33:29,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:33:29,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:33:29,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:33:29,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:33:29,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:33:29,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:33:29,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:33:29,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:33:29,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:33:29,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:33:29,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:33:29,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:33:29,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 22:33:29,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:33:29,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:33:29,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:33:29,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:33:29,513 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:33:29,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:33:29,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:33:29,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:33:29,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:33:29,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:33:29,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:33:29,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:33:29,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:33:29,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:33:29,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:33:29,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:33:29,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:33:29,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:33:29,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:33:29,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:33:29,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:33:29,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:33:29,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:33:29,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:33:29,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:33:29,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:33:29,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:33:29,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:33:29,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:33:29,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:33:29,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:33:29,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:33:29,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:33:29,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:33:29,952 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:33:29,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-10-26 22:33:30,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e74212cb/e9e6862005364d74a40b6af36c31f01f/FLAG292ae66ae [2020-10-26 22:33:30,884 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:33:30,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-10-26 22:33:30,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e74212cb/e9e6862005364d74a40b6af36c31f01f/FLAG292ae66ae [2020-10-26 22:33:31,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e74212cb/e9e6862005364d74a40b6af36c31f01f [2020-10-26 22:33:31,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:33:31,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:33:31,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:33:31,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:33:31,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:33:31,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:31" (1/1) ... [2020-10-26 22:33:31,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535a338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:31, skipping insertion in model container [2020-10-26 22:33:31,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:31" (1/1) ... [2020-10-26 22:33:31,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:33:31,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:33:31,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:33:31,737 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:33:31,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:33:32,001 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:33:32,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32 WrapperNode [2020-10-26 22:33:32,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:33:32,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:33:32,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:33:32,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:33:32,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:33:32,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:33:32,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:33:32,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:33:32,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:33:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:33:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:33:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:33:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:33:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:33:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:33:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:33:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:33:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:33:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:33:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:33:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:33:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:33:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:33:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:33:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:33:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:33:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:33:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:33:33,741 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:33:33,742 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:33:33,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:33 BoogieIcfgContainer [2020-10-26 22:33:33,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:33:33,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:33:33,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:33:33,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:33:33,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:33:31" (1/3) ... [2020-10-26 22:33:33,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bea3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:33, skipping insertion in model container [2020-10-26 22:33:33,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (2/3) ... [2020-10-26 22:33:33,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bea3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:33, skipping insertion in model container [2020-10-26 22:33:33,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:33" (3/3) ... [2020-10-26 22:33:33,754 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-10-26 22:33:33,772 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:33:33,779 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:33:33,807 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:33:33,844 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:33:33,844 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:33:33,844 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:33:33,844 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:33:33,844 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:33:33,845 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:33:33,845 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:33:33,845 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:33:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:33:33,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-26 22:33:33,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:33,899 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] [2020-10-26 22:33:33,899 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:33,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:33,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1215620930, now seen corresponding path program 1 times [2020-10-26 22:33:33,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:33,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433660930] [2020-10-26 22:33:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:34,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:34,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:34,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-26 22:33:34,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-10-26 22:33:34,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-26 22:33:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:33:35,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:35,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:35,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:35,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-26 22:33:35,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:33:35,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433660930] [2020-10-26 22:33:35,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:33:35,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 22:33:35,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572668074] [2020-10-26 22:33:35,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:35,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:35,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:35,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:35,211 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-26 22:33:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:37,365 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:33:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:37,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-10-26 22:33:37,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:37,392 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:33:37,392 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:33:37,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:37,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:33:37,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:33:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:33:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:33:37,487 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 57 [2020-10-26 22:33:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:37,488 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:33:37,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:37,489 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:33:37,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-26 22:33:37,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:37,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:37,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:33:37,496 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:37,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:37,497 INFO L82 PathProgramCache]: Analyzing trace with hash 165837215, now seen corresponding path program 1 times [2020-10-26 22:33:37,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:37,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890123098] [2020-10-26 22:33:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:37,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:37,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:38,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 22:33:38,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 867 [2020-10-26 22:33:38,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:33:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-26 22:33:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:38,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:38,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:38,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:33:38,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:38,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:38,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:38,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:38,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:38,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:38,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-26 22:33:38,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:38,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:33:38,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:33:38,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890123098] [2020-10-26 22:33:38,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:38,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:33:38,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220106425] [2020-10-26 22:33:38,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:38,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:38,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:38,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:38,981 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 7 states. [2020-10-26 22:33:41,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:41,651 INFO L93 Difference]: Finished difference Result 1190 states and 1637 transitions. [2020-10-26 22:33:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:41,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-26 22:33:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:41,661 INFO L225 Difference]: With dead ends: 1190 [2020-10-26 22:33:41,661 INFO L226 Difference]: Without dead ends: 897 [2020-10-26 22:33:41,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:33:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-10-26 22:33:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 740. [2020-10-26 22:33:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-10-26 22:33:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 997 transitions. [2020-10-26 22:33:41,739 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 997 transitions. Word has length 127 [2020-10-26 22:33:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:41,740 INFO L481 AbstractCegarLoop]: Abstraction has 740 states and 997 transitions. [2020-10-26 22:33:41,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 997 transitions. [2020-10-26 22:33:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-26 22:33:41,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:41,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:41,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:33:41,745 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:41,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:41,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1586562813, now seen corresponding path program 1 times [2020-10-26 22:33:41,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:41,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238460351] [2020-10-26 22:33:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:41,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:42,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:42,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 22:33:42,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:42,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-10-26 22:33:42,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:33:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-26 22:33:42,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:42,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:42,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:42,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:42,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:33:42,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:42,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:42,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:42,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:42,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:33:42,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:42,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 22:33:42,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:42,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:33:42,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:33:42,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238460351] [2020-10-26 22:33:42,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:42,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:42,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838128022] [2020-10-26 22:33:42,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:42,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:42,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:42,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:42,610 INFO L87 Difference]: Start difference. First operand 740 states and 997 transitions. Second operand 5 states. [2020-10-26 22:33:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:44,349 INFO L93 Difference]: Finished difference Result 1772 states and 2461 transitions. [2020-10-26 22:33:44,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:44,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2020-10-26 22:33:44,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:44,358 INFO L225 Difference]: With dead ends: 1772 [2020-10-26 22:33:44,359 INFO L226 Difference]: Without dead ends: 1038 [2020-10-26 22:33:44,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:44,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-26 22:33:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1032. [2020-10-26 22:33:44,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-26 22:33:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1321 transitions. [2020-10-26 22:33:44,417 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1321 transitions. Word has length 136 [2020-10-26 22:33:44,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:44,419 INFO L481 AbstractCegarLoop]: Abstraction has 1032 states and 1321 transitions. [2020-10-26 22:33:44,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:44,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1321 transitions. [2020-10-26 22:33:44,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-26 22:33:44,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:44,435 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:44,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:33:44,435 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:44,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:44,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1328109142, now seen corresponding path program 1 times [2020-10-26 22:33:44,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:44,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593670159] [2020-10-26 22:33:44,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:44,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:45,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:46,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:46,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-26 22:33:46,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:46,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2142 [2020-10-26 22:33:46,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:33:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 22:33:46,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:33:46,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:46,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:46,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:46,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:46,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:46,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:33:46,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:46,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:46,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:46,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:46,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:46,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:33:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-26 22:33:46,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:33:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 22:33:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:46,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:47,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:33:47,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-26 22:33:47,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:33:47,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:47,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593670159] [2020-10-26 22:33:47,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:47,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:47,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378278194] [2020-10-26 22:33:47,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:47,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:47,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:47,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:47,164 INFO L87 Difference]: Start difference. First operand 1032 states and 1321 transitions. Second operand 7 states. [2020-10-26 22:33:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:49,155 INFO L93 Difference]: Finished difference Result 2227 states and 2861 transitions. [2020-10-26 22:33:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:33:49,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-26 22:33:49,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:49,171 INFO L225 Difference]: With dead ends: 2227 [2020-10-26 22:33:49,171 INFO L226 Difference]: Without dead ends: 907 [2020-10-26 22:33:49,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:33:49,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-10-26 22:33:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 887. [2020-10-26 22:33:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2020-10-26 22:33:49,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1024 transitions. [2020-10-26 22:33:49,235 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1024 transitions. Word has length 209 [2020-10-26 22:33:49,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:49,235 INFO L481 AbstractCegarLoop]: Abstraction has 887 states and 1024 transitions. [2020-10-26 22:33:49,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:49,235 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1024 transitions. [2020-10-26 22:33:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-26 22:33:49,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:49,239 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:33:49,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:33:49,240 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:49,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1092579996, now seen corresponding path program 1 times [2020-10-26 22:33:49,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:49,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514721590] [2020-10-26 22:33:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:49,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:50,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:50,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:51,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:51,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-26 22:33:51,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:51,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1707 [2020-10-26 22:33:51,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:51,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:51,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:33:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:51,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:51,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:51,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:51,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:51,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:51,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:51,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:33:51,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:51,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:51,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:51,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:51,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:51,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:51,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:51,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 22:33:51,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:33:51,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:51,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:33:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:51,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:51,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:51,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:51,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:51,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-26 22:33:51,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:51,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:51,504 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:51,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514721590] [2020-10-26 22:33:51,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:51,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:33:51,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921370079] [2020-10-26 22:33:51,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:33:51,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:51,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:33:51,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:51,507 INFO L87 Difference]: Start difference. First operand 887 states and 1024 transitions. Second operand 8 states. [2020-10-26 22:33:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:54,131 INFO L93 Difference]: Finished difference Result 2384 states and 2806 transitions. [2020-10-26 22:33:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 22:33:54,132 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 217 [2020-10-26 22:33:54,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:54,140 INFO L225 Difference]: With dead ends: 2384 [2020-10-26 22:33:54,140 INFO L226 Difference]: Without dead ends: 1354 [2020-10-26 22:33:54,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 22:33:54,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2020-10-26 22:33:54,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1193. [2020-10-26 22:33:54,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2020-10-26 22:33:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1411 transitions. [2020-10-26 22:33:54,185 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1411 transitions. Word has length 217 [2020-10-26 22:33:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:54,186 INFO L481 AbstractCegarLoop]: Abstraction has 1193 states and 1411 transitions. [2020-10-26 22:33:54,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:33:54,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1411 transitions. [2020-10-26 22:33:54,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-26 22:33:54,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:54,191 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:33:54,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:33:54,192 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:54,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:54,192 INFO L82 PathProgramCache]: Analyzing trace with hash 285912146, now seen corresponding path program 1 times [2020-10-26 22:33:54,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:54,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878369988] [2020-10-26 22:33:54,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:54,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:57,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:58,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-26 22:33:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:33:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-26 22:33:59,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:59,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:59,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:59,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:59,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:59,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:59,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 22:33:59,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:59,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:59,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:59,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:59,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:59,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:59,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:59,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:59,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-26 22:33:59,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:59,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:33:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:59,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 22:33:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:59,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:59,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:59,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:59,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 22:33:59,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 98 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:33:59,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878369988] [2020-10-26 22:33:59,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:59,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:59,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390017942] [2020-10-26 22:33:59,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:59,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:59,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:59,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:59,807 INFO L87 Difference]: Start difference. First operand 1193 states and 1411 transitions. Second operand 7 states. [2020-10-26 22:34:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:01,435 INFO L93 Difference]: Finished difference Result 2553 states and 3016 transitions. [2020-10-26 22:34:01,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:34:01,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-26 22:34:01,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:01,445 INFO L225 Difference]: With dead ends: 2553 [2020-10-26 22:34:01,445 INFO L226 Difference]: Without dead ends: 1366 [2020-10-26 22:34:01,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:34:01,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-10-26 22:34:01,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1346. [2020-10-26 22:34:01,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-10-26 22:34:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1577 transitions. [2020-10-26 22:34:01,501 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1577 transitions. Word has length 234 [2020-10-26 22:34:01,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:01,501 INFO L481 AbstractCegarLoop]: Abstraction has 1346 states and 1577 transitions. [2020-10-26 22:34:01,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:01,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1577 transitions. [2020-10-26 22:34:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-26 22:34:01,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:01,509 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:34:01,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:34:01,509 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:01,510 INFO L82 PathProgramCache]: Analyzing trace with hash -7948164, now seen corresponding path program 1 times [2020-10-26 22:34:01,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:01,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483055624] [2020-10-26 22:34:01,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:01,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:01,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:02,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:04,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:06,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-26 22:34:06,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-26 22:34:06,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:34:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:34:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-26 22:34:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:06,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:06,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:06,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:34:06,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:06,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:06,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:06,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:06,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:34:06,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:06,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-26 22:34:06,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:34:06,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:06,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:34:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:07,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:07,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:07,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:07,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-26 22:34:07,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:07,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:34:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:07,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483055624] [2020-10-26 22:34:07,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:07,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:07,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130994176] [2020-10-26 22:34:07,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:07,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:07,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:07,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:07,809 INFO L87 Difference]: Start difference. First operand 1346 states and 1577 transitions. Second operand 8 states. [2020-10-26 22:34:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:10,032 INFO L93 Difference]: Finished difference Result 2714 states and 3217 transitions. [2020-10-26 22:34:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:34:10,033 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 268 [2020-10-26 22:34:10,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:10,041 INFO L225 Difference]: With dead ends: 2714 [2020-10-26 22:34:10,041 INFO L226 Difference]: Without dead ends: 1517 [2020-10-26 22:34:10,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:34:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-10-26 22:34:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1495. [2020-10-26 22:34:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-26 22:34:10,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1733 transitions. [2020-10-26 22:34:10,095 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1733 transitions. Word has length 268 [2020-10-26 22:34:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:10,096 INFO L481 AbstractCegarLoop]: Abstraction has 1495 states and 1733 transitions. [2020-10-26 22:34:10,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1733 transitions. [2020-10-26 22:34:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-26 22:34:10,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:10,104 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:34:10,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:34:10,104 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash -966806250, now seen corresponding path program 1 times [2020-10-26 22:34:10,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:10,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544430436] [2020-10-26 22:34:10,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:10,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:10,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:11,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-26 22:34:13,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:34:13,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3162 [2020-10-26 22:34:13,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:34:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:34:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:34:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:13,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:34:13,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:13,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:13,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-26 22:34:13,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:13,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:34:13,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:14,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:14,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:14,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:14,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-26 22:34:14,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:34:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:14,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 195 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:14,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544430436] [2020-10-26 22:34:14,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:14,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:14,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047419240] [2020-10-26 22:34:14,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:14,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:14,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:14,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:14,278 INFO L87 Difference]: Start difference. First operand 1495 states and 1733 transitions. Second operand 8 states. [2020-10-26 22:34:16,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:16,708 INFO L93 Difference]: Finished difference Result 2698 states and 3183 transitions. [2020-10-26 22:34:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:34:16,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 313 [2020-10-26 22:34:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:16,725 INFO L225 Difference]: With dead ends: 2698 [2020-10-26 22:34:16,726 INFO L226 Difference]: Without dead ends: 2532 [2020-10-26 22:34:16,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:34:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2020-10-26 22:34:16,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 2242. [2020-10-26 22:34:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2242 states. [2020-10-26 22:34:16,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2703 transitions. [2020-10-26 22:34:16,801 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2703 transitions. Word has length 313 [2020-10-26 22:34:16,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:16,802 INFO L481 AbstractCegarLoop]: Abstraction has 2242 states and 2703 transitions. [2020-10-26 22:34:16,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2703 transitions. [2020-10-26 22:34:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-26 22:34:16,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:16,812 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:16,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:34:16,812 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:16,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:16,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1406813393, now seen corresponding path program 1 times [2020-10-26 22:34:16,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:16,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052628637] [2020-10-26 22:34:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:16,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:17,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:21,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:21,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:21,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-26 22:34:21,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:34:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-26 22:34:21,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:34:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 22:34:21,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:22,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:22,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:22,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:22,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:22,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:22,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:34:22,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:22,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:22,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:22,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:22,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:22,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:22,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:22,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:22,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:22,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-26 22:34:22,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:34:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:22,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:22,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:22,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:22,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:34:22,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:22,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-26 22:34:22,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:34:22,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-26 22:34:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:22,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:22,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:22,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:22,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:22,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 22:34:22,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:34:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:22,646 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 235 proven. 86 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:34:22,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052628637] [2020-10-26 22:34:22,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:22,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:22,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197729443] [2020-10-26 22:34:22,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:22,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:22,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:22,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:22,649 INFO L87 Difference]: Start difference. First operand 2242 states and 2703 transitions. Second operand 7 states. [2020-10-26 22:34:24,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:24,782 INFO L93 Difference]: Finished difference Result 4943 states and 6044 transitions. [2020-10-26 22:34:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:34:24,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-26 22:34:24,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:24,796 INFO L225 Difference]: With dead ends: 4943 [2020-10-26 22:34:24,796 INFO L226 Difference]: Without dead ends: 2850 [2020-10-26 22:34:24,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:34:24,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2020-10-26 22:34:24,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2832. [2020-10-26 22:34:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-10-26 22:34:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3348 transitions. [2020-10-26 22:34:24,890 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3348 transitions. Word has length 349 [2020-10-26 22:34:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:24,891 INFO L481 AbstractCegarLoop]: Abstraction has 2832 states and 3348 transitions. [2020-10-26 22:34:24,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:24,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3348 transitions. [2020-10-26 22:34:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-26 22:34:24,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:24,902 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:24,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:34:24,902 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:24,903 INFO L82 PathProgramCache]: Analyzing trace with hash 443661077, now seen corresponding path program 1 times [2020-10-26 22:34:24,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:24,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321208328] [2020-10-26 22:34:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:25,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:25,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:26,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2336 [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-26 22:34:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:27,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:27,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:27,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:27,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:34:27,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:27,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:27,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:27,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:27,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:27,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:34:27,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 22:34:27,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:34:27,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:27,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:34:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:27,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:27,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:27,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-26 22:34:27,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:34:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 316 proven. 5 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:34:27,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321208328] [2020-10-26 22:34:27,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:27,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:27,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143769548] [2020-10-26 22:34:27,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:27,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:27,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:27,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:27,928 INFO L87 Difference]: Start difference. First operand 2832 states and 3348 transitions. Second operand 7 states. [2020-10-26 22:34:30,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:30,141 INFO L93 Difference]: Finished difference Result 5660 states and 6689 transitions. [2020-10-26 22:34:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:34:30,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 368 [2020-10-26 22:34:30,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:30,155 INFO L225 Difference]: With dead ends: 5660 [2020-10-26 22:34:30,155 INFO L226 Difference]: Without dead ends: 2826 [2020-10-26 22:34:30,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:34:30,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2020-10-26 22:34:30,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 1793. [2020-10-26 22:34:30,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1793 states. [2020-10-26 22:34:30,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2004 transitions. [2020-10-26 22:34:30,234 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2004 transitions. Word has length 368 [2020-10-26 22:34:30,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:30,235 INFO L481 AbstractCegarLoop]: Abstraction has 1793 states and 2004 transitions. [2020-10-26 22:34:30,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2004 transitions. [2020-10-26 22:34:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-26 22:34:30,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:30,244 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:34:30,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:34:30,245 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:30,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:30,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1392394029, now seen corresponding path program 1 times [2020-10-26 22:34:30,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:30,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653261412] [2020-10-26 22:34:30,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:30,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:31,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:32,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:32,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-26 22:34:32,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:34:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2228 [2020-10-26 22:34:32,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:34:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:34:32,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:32,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:32,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:32,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:32,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:32,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:32,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:34:32,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:32,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:32,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:32,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:32,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:32,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:32,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:32,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:32,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:32,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:34:32,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:32,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 22:34:32,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:34:32,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:32,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:34:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:32,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:32,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:34:32,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 342 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:34:33,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653261412] [2020-10-26 22:34:33,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:33,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:33,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296324646] [2020-10-26 22:34:33,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:33,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:33,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:33,229 INFO L87 Difference]: Start difference. First operand 1793 states and 2004 transitions. Second operand 7 states. [2020-10-26 22:34:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:35,340 INFO L93 Difference]: Finished difference Result 3602 states and 4079 transitions. [2020-10-26 22:34:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:34:35,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 387 [2020-10-26 22:34:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:35,353 INFO L225 Difference]: With dead ends: 3602 [2020-10-26 22:34:35,353 INFO L226 Difference]: Without dead ends: 1958 [2020-10-26 22:34:35,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:34:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2020-10-26 22:34:35,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1942. [2020-10-26 22:34:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2020-10-26 22:34:35,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2167 transitions. [2020-10-26 22:34:35,421 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2167 transitions. Word has length 387 [2020-10-26 22:34:35,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:35,421 INFO L481 AbstractCegarLoop]: Abstraction has 1942 states and 2167 transitions. [2020-10-26 22:34:35,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2167 transitions. [2020-10-26 22:34:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-26 22:34:35,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:35,429 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:34:35,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:34:35,429 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:35,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:35,430 INFO L82 PathProgramCache]: Analyzing trace with hash 679567167, now seen corresponding path program 1 times [2020-10-26 22:34:35,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:35,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771688124] [2020-10-26 22:34:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:35,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:36,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 413 [2020-10-26 22:34:37,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1540 [2020-10-26 22:34:37,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:34:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 22:34:37,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:37,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:34:37,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:37,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:37,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:37,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:34:37,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:34:37,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 22:34:37,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:34:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:34:37,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-26 22:34:37,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:34:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-26 22:34:37,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771688124] [2020-10-26 22:34:37,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:37,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:34:37,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402473936] [2020-10-26 22:34:37,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:34:37,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:37,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:34:37,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:34:37,715 INFO L87 Difference]: Start difference. First operand 1942 states and 2167 transitions. Second operand 5 states. [2020-10-26 22:34:38,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:38,704 INFO L93 Difference]: Finished difference Result 1962 states and 2188 transitions. [2020-10-26 22:34:38,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:34:38,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 397 [2020-10-26 22:34:38,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:38,706 INFO L225 Difference]: With dead ends: 1962 [2020-10-26 22:34:38,706 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:34:38,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:34:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:34:38,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:34:38,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:34:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:34:38,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 397 [2020-10-26 22:34:38,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:38,711 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:34:38,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:34:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:34:38,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:34:38,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:34:38,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:34:39,054 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 139 [2020-10-26 22:34:39,653 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 139 [2020-10-26 22:34:40,149 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 44 [2020-10-26 22:34:40,949 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 57 [2020-10-26 22:34:41,227 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 46 [2020-10-26 22:34:41,616 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 44 [2020-10-26 22:34:41,622 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:34:41,622 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:34:41,622 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:34:41,622 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:34:41,622 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:34:41,623 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,624 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:34:41,625 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:34:41,626 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:34:41,627 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:34:41,628 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,629 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:34:41,630 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,631 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:34:41,632 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:34:41,633 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:34:41,634 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:34:41,635 INFO L270 CegarLoopResult]: At program point L156(line 156) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a19~0)| 8)))) (and (or .cse0 (not (<= 4 |old(~a10~0)|))) (not (= 9 |old(~a19~0)|)) (not (= |old(~a10~0)| 1)) (or (not (= 0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 505272))) (or .cse0 (not (<= |old(~a10~0)| 2))) (or (not (= 6 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a1~0)| 33)) (not (<= 0 (+ |old(~a1~0)| 12))) (not (= ~a12~0 0))))) [2020-10-26 22:34:41,635 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:34:41,635 INFO L274 CegarLoopResult]: For program point L156-1(line 156) no Hoare annotation was computed. [2020-10-26 22:34:41,635 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:34:41,635 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:34:41,635 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:34:41,635 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:34:41,635 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,636 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse2 (= ~a1~0 |old(~a1~0)|)) (.cse3 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (not (<= |old(~a19~0)| 8))) (.cse1 (and .cse2 (= ~a19~0 |old(~a19~0)|) .cse3))) (and (or .cse0 (not (<= 4 |old(~a10~0)|)) .cse1) (or .cse1 (not (= 0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 505272))) (or (not (= |old(~a10~0)| 1)) .cse1) (or .cse1 (not (= 9 |old(~a19~0)|))) (or .cse0 .cse1 (not (<= |old(~a10~0)| 2))) (or (not (= 6 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a1~0)| 33)) (and .cse2 (= ~a19~0 6) .cse3) (not (<= 0 (+ |old(~a1~0)| 12))) (not (= ~a12~0 0)))))) [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:34:41,637 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:34:41,638 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,639 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:34:41,640 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:34:41,641 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:34:41,642 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:34:41,642 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:34:41,642 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-26 22:34:41,642 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:34:41,642 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (and (<= 0 (+ ~a1~0 12)) (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0) (= ~a19~0 6)) (= ~a10~0 1) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) (<= ~a1~0 505272)) (not (= 23 |old(~a1~0)|)) (and (<= 4 ~a10~0) .cse0) (and (<= ~a10~0 2) .cse0))) [2020-10-26 22:34:41,642 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:34:41,642 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:34:41,642 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (and (<= 0 (+ ~a1~0 12)) (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0) (= ~a19~0 6)) (= ~a10~0 1) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) (<= ~a1~0 505272)) (not (= 23 |old(~a1~0)|)) (and (<= 4 ~a10~0) .cse0) (and (<= ~a10~0 2) .cse0))) [2020-10-26 22:34:41,643 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:34:41,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:34:41 BoogieIcfgContainer [2020-10-26 22:34:41,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:34:41,668 INFO L168 Benchmark]: Toolchain (without parser) took 70522.85 ms. Allocated memory was 151.0 MB in the beginning and 979.4 MB in the end (delta: 828.4 MB). Free memory was 124.9 MB in the beginning and 386.5 MB in the end (delta: -261.6 MB). Peak memory consumption was 568.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:41,668 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:34:41,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.57 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 128.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:41,670 INFO L168 Benchmark]: Boogie Preprocessor took 135.16 ms. Allocated memory is still 151.0 MB. Free memory was 128.6 MB in the beginning and 123.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:41,671 INFO L168 Benchmark]: RCFGBuilder took 1602.66 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 102.4 MB in the end (delta: 21.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:41,671 INFO L168 Benchmark]: TraceAbstraction took 67919.77 ms. Allocated memory was 151.0 MB in the beginning and 979.4 MB in the end (delta: 828.4 MB). Free memory was 101.9 MB in the beginning and 386.5 MB in the end (delta: -284.6 MB). Peak memory consumption was 544.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:41,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 848.57 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 128.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 135.16 ms. Allocated memory is still 151.0 MB. Free memory was 128.6 MB in the beginning and 123.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1602.66 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 102.4 MB in the end (delta: 21.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 67919.77 ms. Allocated memory was 151.0 MB in the beginning and 979.4 MB in the end (delta: 828.4 MB). Free memory was 101.9 MB in the beginning and 386.5 MB in the end (delta: -284.6 MB). Peak memory consumption was 544.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((((0 <= a1 + 12 && 14 == a4) && a1 <= 33) && a12 == 0) && a19 == 6) || a10 == 1) || !(9 == \old(a19))) || a19 == 9) || !(0 == \old(a10))) || (a10 == 0 && a1 <= 505272)) || !(23 == \old(a1))) || (4 <= a10 && a19 <= 8)) || (a10 <= 2 && a19 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.8s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 333 SDtfs, 5272 SDslu, 429 SDs, 0 SdLazy, 11301 SolverSat, 1503 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2832occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1747 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 218 PreInvPairs, 254 NumberOfFragments, 392 HoareAnnotationTreeSize, 218 FomulaSimplifications, 98914 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14134 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 36.7s InterpolantComputationTime, 3062 NumberOfCodeBlocks, 3062 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3050 ConstructedInterpolants, 0 QuantifiedInterpolants, 2478939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 2437/2685 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...