/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:00:28,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:00:28,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:00:28,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:00:28,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:00:28,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:00:28,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:00:28,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:00:28,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:00:28,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:00:28,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:00:28,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:00:28,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:00:28,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:00:28,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:00:28,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:00:28,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:00:28,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:00:28,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:00:28,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:00:28,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:00:28,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:00:28,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:00:28,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:00:28,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:00:28,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:00:28,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:00:28,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:00:28,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:00:28,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:00:28,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:00:28,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:00:28,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:00:28,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:00:28,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:00:28,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:00:28,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:00:28,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:00:28,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:00:28,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:00:28,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:00:28,362 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 [2020-10-28 12:00:28,389 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:00:28,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:00:28,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:00:28,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:00:28,391 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:00:28,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:00:28,392 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:00:28,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:00:28,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:00:28,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:00:28,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:00:28,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:00:28,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:00:28,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:00:28,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:00:28,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:00:28,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:00:28,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:00:28,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:00:28,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:00:28,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:00:28,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:00:28,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:00:28,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:00:28,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:00:28,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:00:28,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:00:28,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:00:28,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:00:28,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:00:28,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:00:28,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:00:28,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:00:28,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:00:28,831 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:00:28,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-10-28 12:00:28,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ae535121/c0865f357892415bbd2a7993debc8fbb/FLAG64d35cddf [2020-10-28 12:00:29,647 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:00:29,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-10-28 12:00:29,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ae535121/c0865f357892415bbd2a7993debc8fbb/FLAG64d35cddf [2020-10-28 12:00:29,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ae535121/c0865f357892415bbd2a7993debc8fbb [2020-10-28 12:00:29,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:00:29,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:00:29,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:29,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:00:29,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:00:29,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:29" (1/1) ... [2020-10-28 12:00:29,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffd9185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:29, skipping insertion in model container [2020-10-28 12:00:29,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:29" (1/1) ... [2020-10-28 12:00:29,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:00:30,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:00:30,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:30,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:00:30,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:30,704 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:00:30,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30 WrapperNode [2020-10-28 12:00:30,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:30,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:00:30,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:00:30,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:00:30,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:00:30,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:00:30,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:00:30,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:00:30,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (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 [2020-10-28 12:00:30,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:00:30,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:00:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:00:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:00:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:00:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:00:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:00:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:00:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:00:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:00:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:00:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:00:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:00:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:00:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:00:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:00:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:00:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:00:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:00:32,466 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:00:32,467 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:00:32,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:32 BoogieIcfgContainer [2020-10-28 12:00:32,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:00:32,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:00:32,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:00:32,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:00:32,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:00:29" (1/3) ... [2020-10-28 12:00:32,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20517350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:32, skipping insertion in model container [2020-10-28 12:00:32,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (2/3) ... [2020-10-28 12:00:32,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20517350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:32, skipping insertion in model container [2020-10-28 12:00:32,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:32" (3/3) ... [2020-10-28 12:00:32,478 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-10-28 12:00:32,490 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:00:32,495 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:00:32,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:00:32,536 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:00:32,536 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:00:32,536 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:00:32,536 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:00:32,536 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:00:32,537 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:00:32,537 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:00:32,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:00:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 12:00:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-28 12:00:32,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:32,569 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] [2020-10-28 12:00:32,570 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:32,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:32,576 INFO L82 PathProgramCache]: Analyzing trace with hash -376419412, now seen corresponding path program 1 times [2020-10-28 12:00:32,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:32,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75896482] [2020-10-28 12:00:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:32,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:33,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:33,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 12:00:33,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:33,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-28 12:00:33,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:33,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:33,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:33,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:33,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-28 12:00:33,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:00:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:33,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:33,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:33,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:33,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:00:33,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:33,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:33,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75896482] [2020-10-28 12:00:33,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:33,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:00:33,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794337267] [2020-10-28 12:00:33,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:00:33,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:33,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:00:33,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:00:33,649 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 12:00:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:35,577 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-28 12:00:35,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:35,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-28 12:00:35,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:35,595 INFO L225 Difference]: With dead ends: 586 [2020-10-28 12:00:35,596 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 12:00:35,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:00:35,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 12:00:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-28 12:00:35,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-28 12:00:35,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 449 transitions. [2020-10-28 12:00:35,678 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 449 transitions. Word has length 56 [2020-10-28 12:00:35,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:35,679 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 449 transitions. [2020-10-28 12:00:35,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:00:35,679 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 449 transitions. [2020-10-28 12:00:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-28 12:00:35,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:35,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:35,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:00:35,687 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:35,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:35,688 INFO L82 PathProgramCache]: Analyzing trace with hash -82314564, now seen corresponding path program 1 times [2020-10-28 12:00:35,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:35,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834351602] [2020-10-28 12:00:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:35,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:35,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:36,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:37,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:37,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:00:37,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:00:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-10-28 12:00:37,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:37,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:37,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:37,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:37,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:00:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:37,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:37,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:37,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:37,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:00:37,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:37,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:37,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:00:37,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:37,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:37,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:37,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:00:37,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:37,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 12:00:37,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:37,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:00:37,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:37,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834351602] [2020-10-28 12:00:37,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:37,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:00:37,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458191927] [2020-10-28 12:00:37,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:37,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:37,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:37,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:37,822 INFO L87 Difference]: Start difference. First operand 297 states and 449 transitions. Second operand 7 states. [2020-10-28 12:00:39,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:39,877 INFO L93 Difference]: Finished difference Result 751 states and 1152 transitions. [2020-10-28 12:00:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:00:39,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-10-28 12:00:39,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:39,884 INFO L225 Difference]: With dead ends: 751 [2020-10-28 12:00:39,884 INFO L226 Difference]: Without dead ends: 460 [2020-10-28 12:00:39,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:00:39,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-28 12:00:39,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 446. [2020-10-28 12:00:39,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-28 12:00:39,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 627 transitions. [2020-10-28 12:00:39,923 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 627 transitions. Word has length 129 [2020-10-28 12:00:39,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:39,924 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 627 transitions. [2020-10-28 12:00:39,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:39,924 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 627 transitions. [2020-10-28 12:00:39,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-28 12:00:39,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:39,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:39,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:00:39,929 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:39,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:39,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1936379216, now seen corresponding path program 1 times [2020-10-28 12:00:39,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:39,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353613796] [2020-10-28 12:00:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:39,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:40,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:40,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:40,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-28 12:00:40,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:40,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-28 12:00:40,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:40,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:40,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:40,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:00:40,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 12:00:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:40,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:40,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:40,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:40,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:40,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:00:40,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:40,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:00:40,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:40,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:40,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:40,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:00:40,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:40,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 12:00:40,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:40,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:40,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:00:40,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:40,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353613796] [2020-10-28 12:00:40,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:40,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:00:40,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648324751] [2020-10-28 12:00:40,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:00:40,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:40,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:00:40,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:00:40,904 INFO L87 Difference]: Start difference. First operand 446 states and 627 transitions. Second operand 6 states. [2020-10-28 12:00:42,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:42,748 INFO L93 Difference]: Finished difference Result 1337 states and 1936 transitions. [2020-10-28 12:00:42,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:42,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2020-10-28 12:00:42,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:42,757 INFO L225 Difference]: With dead ends: 1337 [2020-10-28 12:00:42,757 INFO L226 Difference]: Without dead ends: 897 [2020-10-28 12:00:42,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:42,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-10-28 12:00:42,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 885. [2020-10-28 12:00:42,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-28 12:00:42,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1250 transitions. [2020-10-28 12:00:42,815 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1250 transitions. Word has length 135 [2020-10-28 12:00:42,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:42,816 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 1250 transitions. [2020-10-28 12:00:42,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:00:42,816 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1250 transitions. [2020-10-28 12:00:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-28 12:00:42,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:42,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:42,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:00:42,823 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:42,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:42,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1132934876, now seen corresponding path program 1 times [2020-10-28 12:00:42,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:42,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309814395] [2020-10-28 12:00:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:42,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:43,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:44,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:44,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:00:44,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:00:44,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1311 [2020-10-28 12:00:44,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:44,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:44,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:44,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:00:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:44,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:44,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:44,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:44,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:44,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:44,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:00:44,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:44,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:44,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:44,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:44,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:44,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:44,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:44,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:44,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:44,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:00:44,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:44,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 12:00:44,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:44,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:00:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:44,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309814395] [2020-10-28 12:00:44,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:44,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:00:44,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799481465] [2020-10-28 12:00:44,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:44,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:44,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:44,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:44,662 INFO L87 Difference]: Start difference. First operand 885 states and 1250 transitions. Second operand 7 states. [2020-10-28 12:00:46,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:46,355 INFO L93 Difference]: Finished difference Result 1796 states and 2581 transitions. [2020-10-28 12:00:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:00:46,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-10-28 12:00:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:46,363 INFO L225 Difference]: With dead ends: 1796 [2020-10-28 12:00:46,363 INFO L226 Difference]: Without dead ends: 917 [2020-10-28 12:00:46,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:00:46,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-10-28 12:00:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 895. [2020-10-28 12:00:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-28 12:00:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1118 transitions. [2020-10-28 12:00:46,421 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1118 transitions. Word has length 168 [2020-10-28 12:00:46,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:46,422 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1118 transitions. [2020-10-28 12:00:46,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:46,423 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1118 transitions. [2020-10-28 12:00:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-28 12:00:46,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:46,427 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:46,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:00:46,427 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:46,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:46,428 INFO L82 PathProgramCache]: Analyzing trace with hash 2100197988, now seen corresponding path program 1 times [2020-10-28 12:00:46,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:46,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050388003] [2020-10-28 12:00:46,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:46,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:47,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:48,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:48,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-28 12:00:48,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:00:48,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1529 [2020-10-28 12:00:48,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:48,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:48,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:48,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:48,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 12:00:48,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:48,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:48,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:48,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:48,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:48,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:48,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:00:48,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:48,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:48,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:48,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:48,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:48,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:00:48,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:48,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-28 12:00:48,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:48,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:00:48,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:48,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050388003] [2020-10-28 12:00:48,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:48,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:00:48,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365899565] [2020-10-28 12:00:48,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:48,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:48,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:48,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:48,596 INFO L87 Difference]: Start difference. First operand 895 states and 1118 transitions. Second operand 7 states. [2020-10-28 12:00:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:50,186 INFO L93 Difference]: Finished difference Result 2240 states and 2752 transitions. [2020-10-28 12:00:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:00:50,187 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-10-28 12:00:50,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:50,194 INFO L225 Difference]: With dead ends: 2240 [2020-10-28 12:00:50,195 INFO L226 Difference]: Without dead ends: 1351 [2020-10-28 12:00:50,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:00:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2020-10-28 12:00:50,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1183. [2020-10-28 12:00:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-10-28 12:00:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1379 transitions. [2020-10-28 12:00:50,242 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1379 transitions. Word has length 173 [2020-10-28 12:00:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:50,243 INFO L481 AbstractCegarLoop]: Abstraction has 1183 states and 1379 transitions. [2020-10-28 12:00:50,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1379 transitions. [2020-10-28 12:00:50,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-28 12:00:50,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:50,247 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:50,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:00:50,248 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:50,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:50,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1064725536, now seen corresponding path program 1 times [2020-10-28 12:00:50,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:50,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262044441] [2020-10-28 12:00:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:50,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:50,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:51,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:51,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-28 12:00:51,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 742 [2020-10-28 12:00:51,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:51,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-28 12:00:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 12:00:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:51,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:51,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:51,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:51,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:51,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:00:51,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:51,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:51,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:51,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:51,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:51,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:51,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:00:51,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:00:51,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:51,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:51,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:51,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:51,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:51,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 12:00:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:51,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:51,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:51,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:00:51,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:51,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 12:00:51,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:51,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-28 12:00:51,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:51,497 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-28 12:00:51,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262044441] [2020-10-28 12:00:51,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:51,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:00:51,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055598400] [2020-10-28 12:00:51,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:00:51,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:51,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:00:51,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:00:51,499 INFO L87 Difference]: Start difference. First operand 1183 states and 1379 transitions. Second operand 5 states. [2020-10-28 12:00:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:53,228 INFO L93 Difference]: Finished difference Result 2809 states and 3378 transitions. [2020-10-28 12:00:53,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:53,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 238 [2020-10-28 12:00:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:53,242 INFO L225 Difference]: With dead ends: 2809 [2020-10-28 12:00:53,243 INFO L226 Difference]: Without dead ends: 1775 [2020-10-28 12:00:53,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:00:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-10-28 12:00:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1483. [2020-10-28 12:00:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2020-10-28 12:00:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1803 transitions. [2020-10-28 12:00:53,321 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1803 transitions. Word has length 238 [2020-10-28 12:00:53,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:53,322 INFO L481 AbstractCegarLoop]: Abstraction has 1483 states and 1803 transitions. [2020-10-28 12:00:53,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:00:53,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1803 transitions. [2020-10-28 12:00:53,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-28 12:00:53,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:53,329 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:53,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:00:53,329 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:53,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:53,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1963876384, now seen corresponding path program 1 times [2020-10-28 12:00:53,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:53,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540203498] [2020-10-28 12:00:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:53,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:53,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:54,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:55,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:55,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-28 12:00:55,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:00:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1681 [2020-10-28 12:00:55,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:55,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:55,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:55,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:00:55,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:00:55,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:55,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:55,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:55,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:55,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:55,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:55,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:00:55,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:55,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:55,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:55,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:55,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:55,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:00:55,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:55,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 12:00:55,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:55,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:00:55,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:55,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 12:00:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:55,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:00:55,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 12:00:55,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:55,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:00:55,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:00:55,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540203498] [2020-10-28 12:00:55,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:55,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:00:55,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378762771] [2020-10-28 12:00:55,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:55,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:55,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:55,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:55,675 INFO L87 Difference]: Start difference. First operand 1483 states and 1803 transitions. Second operand 7 states. [2020-10-28 12:00:58,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:58,162 INFO L93 Difference]: Finished difference Result 3278 states and 4070 transitions. [2020-10-28 12:00:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:00:58,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-28 12:00:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:58,176 INFO L225 Difference]: With dead ends: 3278 [2020-10-28 12:00:58,176 INFO L226 Difference]: Without dead ends: 1944 [2020-10-28 12:00:58,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:00:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-10-28 12:00:58,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1781. [2020-10-28 12:00:58,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-10-28 12:00:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2134 transitions. [2020-10-28 12:00:58,249 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2134 transitions. Word has length 243 [2020-10-28 12:00:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:58,249 INFO L481 AbstractCegarLoop]: Abstraction has 1781 states and 2134 transitions. [2020-10-28 12:00:58,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2134 transitions. [2020-10-28 12:00:58,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-28 12:00:58,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:58,255 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:58,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:00:58,255 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:58,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:58,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1073738272, now seen corresponding path program 1 times [2020-10-28 12:00:58,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:58,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293950175] [2020-10-28 12:00:58,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:58,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:58,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:59,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:59,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:59,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-28 12:00:59,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:00:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1660 [2020-10-28 12:00:59,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:59,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:00:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:00:59,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:00,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:00,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:00,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:00,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:01:00,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:00,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:00,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:00,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:01:00,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:00,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:01:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:00,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:01:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:00,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 12:01:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:00,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:00,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:01:00,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-28 12:01:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:00,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:01:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:01:00,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293950175] [2020-10-28 12:01:00,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:00,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:00,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61443123] [2020-10-28 12:01:00,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:00,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:00,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:00,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:00,512 INFO L87 Difference]: Start difference. First operand 1781 states and 2134 transitions. Second operand 7 states. [2020-10-28 12:01:02,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:02,640 INFO L93 Difference]: Finished difference Result 4168 states and 5085 transitions. [2020-10-28 12:01:02,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:01:02,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-10-28 12:01:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:02,651 INFO L225 Difference]: With dead ends: 4168 [2020-10-28 12:01:02,651 INFO L226 Difference]: Without dead ends: 1805 [2020-10-28 12:01:02,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:01:02,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2020-10-28 12:01:02,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1781. [2020-10-28 12:01:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-10-28 12:01:02,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2089 transitions. [2020-10-28 12:01:02,728 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2089 transitions. Word has length 252 [2020-10-28 12:01:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:02,728 INFO L481 AbstractCegarLoop]: Abstraction has 1781 states and 2089 transitions. [2020-10-28 12:01:02,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2089 transitions. [2020-10-28 12:01:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-28 12:01:02,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:02,735 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:01:02,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:01:02,736 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:02,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:02,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1502310104, now seen corresponding path program 1 times [2020-10-28 12:01:02,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:02,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485436050] [2020-10-28 12:01:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:02,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:03,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:03,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:04,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-28 12:01:04,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1972 [2020-10-28 12:01:04,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:04,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:01:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:01:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:04,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:04,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:04,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:04,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:04,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:01:04,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:04,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:04,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:04,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:04,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:05,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 12:01:05,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:01:05,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:05,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:01:05,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:05,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-28 12:01:05,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:01:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:01:05,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485436050] [2020-10-28 12:01:05,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:05,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:05,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739272894] [2020-10-28 12:01:05,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:05,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:05,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:05,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:05,653 INFO L87 Difference]: Start difference. First operand 1781 states and 2089 transitions. Second operand 7 states. [2020-10-28 12:01:07,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:07,735 INFO L93 Difference]: Finished difference Result 3721 states and 4491 transitions. [2020-10-28 12:01:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:01:07,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2020-10-28 12:01:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:07,748 INFO L225 Difference]: With dead ends: 3721 [2020-10-28 12:01:07,748 INFO L226 Difference]: Without dead ends: 2089 [2020-10-28 12:01:07,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:01:07,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-28 12:01:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2073. [2020-10-28 12:01:07,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2073 states. [2020-10-28 12:01:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2401 transitions. [2020-10-28 12:01:07,841 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2401 transitions. Word has length 288 [2020-10-28 12:01:07,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:07,842 INFO L481 AbstractCegarLoop]: Abstraction has 2073 states and 2401 transitions. [2020-10-28 12:01:07,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2401 transitions. [2020-10-28 12:01:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-28 12:01:07,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:07,849 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:01:07,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:01:07,849 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:07,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:07,850 INFO L82 PathProgramCache]: Analyzing trace with hash 534233184, now seen corresponding path program 1 times [2020-10-28 12:01:07,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:07,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254848940] [2020-10-28 12:01:07,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:07,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:08,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:08,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-28 12:01:08,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:08,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-28 12:01:08,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:08,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-28 12:01:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 12:01:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:08,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:08,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:08,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:08,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:08,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:08,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:01:08,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:08,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:08,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:08,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:08,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:08,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 12:01:08,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:08,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:01:08,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:08,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:08,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:08,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 12:01:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:08,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:09,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:09,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:01:09,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 12:01:09,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:09,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:01:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-28 12:01:09,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254848940] [2020-10-28 12:01:09,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:09,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:09,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150283593] [2020-10-28 12:01:09,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:09,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:09,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:09,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:09,206 INFO L87 Difference]: Start difference. First operand 2073 states and 2401 transitions. Second operand 5 states. [2020-10-28 12:01:10,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:10,594 INFO L93 Difference]: Finished difference Result 4577 states and 5400 transitions. [2020-10-28 12:01:10,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:10,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-10-28 12:01:10,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:10,608 INFO L225 Difference]: With dead ends: 4577 [2020-10-28 12:01:10,609 INFO L226 Difference]: Without dead ends: 2506 [2020-10-28 12:01:10,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:10,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2020-10-28 12:01:10,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2361. [2020-10-28 12:01:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2361 states. [2020-10-28 12:01:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 2804 transitions. [2020-10-28 12:01:10,687 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 2804 transitions. Word has length 307 [2020-10-28 12:01:10,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:10,688 INFO L481 AbstractCegarLoop]: Abstraction has 2361 states and 2804 transitions. [2020-10-28 12:01:10,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 2804 transitions. [2020-10-28 12:01:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-10-28 12:01:10,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:10,701 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:01:10,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:01:10,701 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:10,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:10,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1642267284, now seen corresponding path program 1 times [2020-10-28 12:01:10,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:10,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912367060] [2020-10-28 12:01:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:10,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:10,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:11,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:13,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:13,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 437 [2020-10-28 12:01:13,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3094 [2020-10-28 12:01:13,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:13,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-28 12:01:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-28 12:01:13,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:14,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:14,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:01:14,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:14,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:14,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 12:01:14,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:14,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:01:14,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:14,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:14,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:14,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 12:01:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:14,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 12:01:14,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:14,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 12:01:14,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-28 12:01:14,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:14,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-28 12:01:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:14,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:01:14,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:14,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-28 12:01:14,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-28 12:01:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 371 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-28 12:01:14,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912367060] [2020-10-28 12:01:14,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:14,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:14,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669309845] [2020-10-28 12:01:14,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:14,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:14,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:14,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:14,646 INFO L87 Difference]: Start difference. First operand 2361 states and 2804 transitions. Second operand 7 states. [2020-10-28 12:01:16,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:16,824 INFO L93 Difference]: Finished difference Result 4883 states and 5935 transitions. [2020-10-28 12:01:16,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:01:16,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2020-10-28 12:01:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:16,837 INFO L225 Difference]: With dead ends: 4883 [2020-10-28 12:01:16,837 INFO L226 Difference]: Without dead ends: 2671 [2020-10-28 12:01:16,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:01:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2020-10-28 12:01:16,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2659. [2020-10-28 12:01:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2020-10-28 12:01:16,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3177 transitions. [2020-10-28 12:01:16,922 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3177 transitions. Word has length 421 [2020-10-28 12:01:16,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:16,923 INFO L481 AbstractCegarLoop]: Abstraction has 2659 states and 3177 transitions. [2020-10-28 12:01:16,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3177 transitions. [2020-10-28 12:01:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2020-10-28 12:01:16,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:16,937 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:16,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:01:16,937 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:16,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:16,938 INFO L82 PathProgramCache]: Analyzing trace with hash -2097609404, now seen corresponding path program 1 times [2020-10-28 12:01:16,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:16,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595293689] [2020-10-28 12:01:16,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:17,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:18,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:18,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 470 [2020-10-28 12:01:18,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:18,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1167 [2020-10-28 12:01:18,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:18,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 412 [2020-10-28 12:01:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 12:01:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:18,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:18,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:18,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:18,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:18,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:01:18,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:18,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:18,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:18,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:18,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:18,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:18,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 12:01:18,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:18,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:01:18,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:18,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:18,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:18,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 12:01:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:18,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:18,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:18,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 12:01:18,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:18,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:01:18,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:18,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:18,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:18,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:18,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:18,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:18,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-28 12:01:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:18,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:18,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:18,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:01:18,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:18,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:01:18,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:18,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:18,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:18,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:18,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-28 12:01:18,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:18,874 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-28 12:01:18,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595293689] [2020-10-28 12:01:18,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:18,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:18,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545577690] [2020-10-28 12:01:18,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:18,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:18,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:18,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:18,877 INFO L87 Difference]: Start difference. First operand 2659 states and 3177 transitions. Second operand 5 states. [2020-10-28 12:01:20,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:20,299 INFO L93 Difference]: Finished difference Result 5313 states and 6410 transitions. [2020-10-28 12:01:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:20,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 454 [2020-10-28 12:01:20,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:20,301 INFO L225 Difference]: With dead ends: 5313 [2020-10-28 12:01:20,301 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:01:20,310 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 [2020-10-28 12:01:20,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:01:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:01:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:01:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:01:20,311 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 454 [2020-10-28 12:01:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:20,311 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:01:20,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:20,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:01:20,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:01:20,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:01:20,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:01:20,793 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 169 [2020-10-28 12:01:21,562 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 169 [2020-10-28 12:01:22,486 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 46 [2020-10-28 12:01:23,281 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 41 [2020-10-28 12:01:23,595 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 32 [2020-10-28 12:01:24,439 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 46 [2020-10-28 12:01:24,443 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:01:24,444 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:01:24,444 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:01:24,444 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:01:24,444 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:01:24,445 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#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)|)) [2020-10-28 12:01:24,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:01:24,445 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 12:01:24,445 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 12:01:24,445 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 12:01:24,445 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:01:24,445 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,446 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:01:24,447 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,448 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:01:24,449 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,450 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 12:01:24,451 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 12:01:24,452 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 12:01:24,453 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:01:24,454 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,455 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:01:24,456 INFO L270 CegarLoopResult]: At program point L153(line 153) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~a10~0)|)))) (and (or (not (<= |old(~a1~0)| 23)) .cse0 (not (<= |old(~a19~0)| 6))) (or (not (<= 9 |old(~a19~0)|)) .cse0) (or .cse0 (not (= 8 |old(~a19~0)|)) (not (<= 41 |old(~a1~0)|))) (or (not (<= 218 |old(~a1~0)|)) .cse0) (not (<= 1 |old(~a10~0)|)))) [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L153-1(line 153) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,457 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 12:01:24,458 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,459 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,460 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,460 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,460 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,460 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,460 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 12:01:24,460 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse1 (not (= 0 |old(~a10~0)|)))) (and (or .cse0 (not (<= |old(~a1~0)| 23)) .cse1 (not (<= |old(~a19~0)| 6))) (or (not (<= 9 |old(~a19~0)|)) .cse0 .cse1) (or (not (<= 218 |old(~a1~0)|)) .cse0 .cse1) (or .cse0 (not (<= 1 |old(~a10~0)|))) (or .cse0 .cse1 (not (= 8 |old(~a19~0)|)) (not (<= 41 |old(~a1~0)|))))) [2020-10-28 12:01:24,460 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 12:01:24,460 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 12:01:24,461 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:01:24,462 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 12:01:24,463 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:01:24,464 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,465 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,466 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,466 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:24,466 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:01:24,466 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 9 ~a19~0) (= ~a10~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-10-28 12:01:24,466 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:01:24,466 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:01:24,466 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (<= 9 ~a19~0) (<= ~a19~0 9) (= ~a1~0 |old(~a1~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|))) [2020-10-28 12:01:24,466 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:01:24,467 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse2 (<= 9 ~a19~0)) (.cse3 (= ~a19~0 8)) (.cse0 (= ~a10~0 0)) (.cse4 (<= 1 ~a10~0)) (.cse1 (<= 0 (+ |old(~a1~0)| 12)))) (or (and .cse0 .cse1 (<= ~a1~0 23) (<= ~a19~0 6)) (not (<= 9 |old(~a19~0)|)) (and .cse2 .cse0 .cse1) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and .cse3 (<= 41 ~a1~0) .cse0) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse0 (<= ~a19~0 9) (= ~a1~0 |old(~a1~0)|)) (and .cse3 .cse4) (and .cse0 .cse1 (<= 218 ~a1~0)) (and .cse4 .cse1))) [2020-10-28 12:01:24,467 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 12:01:24,467 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 12:01:24,467 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (<= 9 ~a19~0)) (.cse3 (= ~a19~0 8)) (.cse0 (= ~a10~0 0)) (.cse4 (<= 1 ~a10~0)) (.cse1 (<= 0 (+ |old(~a1~0)| 12)))) (or (and .cse0 .cse1 (<= ~a1~0 23) (<= ~a19~0 6)) (not (<= 9 |old(~a19~0)|)) (and .cse2 .cse0 .cse1) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and .cse3 (<= 41 ~a1~0) .cse0) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse0 (<= ~a19~0 9) (= ~a1~0 |old(~a1~0)|)) (and .cse3 .cse4) (and .cse0 .cse1 (<= 218 ~a1~0)) (and .cse4 .cse1))) [2020-10-28 12:01:24,467 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:01:24,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:01:24 BoogieIcfgContainer [2020-10-28 12:01:24,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:01:24,490 INFO L168 Benchmark]: Toolchain (without parser) took 54558.26 ms. Allocated memory was 153.1 MB in the beginning and 896.5 MB in the end (delta: 743.4 MB). Free memory was 125.6 MB in the beginning and 544.3 MB in the end (delta: -418.7 MB). Peak memory consumption was 535.3 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:24,491 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:01:24,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.19 ms. Allocated memory is still 153.1 MB. Free memory was 125.0 MB in the beginning and 98.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:24,492 INFO L168 Benchmark]: Boogie Preprocessor took 178.60 ms. Allocated memory is still 153.1 MB. Free memory was 98.3 MB in the beginning and 93.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:24,493 INFO L168 Benchmark]: RCFGBuilder took 1583.54 ms. Allocated memory was 153.1 MB in the beginning and 205.5 MB in the end (delta: 52.4 MB). Free memory was 93.6 MB in the beginning and 175.9 MB in the end (delta: -82.3 MB). Peak memory consumption was 47.6 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:24,494 INFO L168 Benchmark]: TraceAbstraction took 52017.36 ms. Allocated memory was 205.5 MB in the beginning and 896.5 MB in the end (delta: 691.0 MB). Free memory was 175.4 MB in the beginning and 544.3 MB in the end (delta: -369.0 MB). Peak memory consumption was 531.8 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:24,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 759.19 ms. Allocated memory is still 153.1 MB. Free memory was 125.0 MB in the beginning and 98.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 178.60 ms. Allocated memory is still 153.1 MB. Free memory was 98.3 MB in the beginning and 93.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1583.54 ms. Allocated memory was 153.1 MB in the beginning and 205.5 MB in the end (delta: 52.4 MB). Free memory was 93.6 MB in the beginning and 175.9 MB in the end (delta: -82.3 MB). Peak memory consumption was 47.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 52017.36 ms. Allocated memory was 205.5 MB in the beginning and 896.5 MB in the end (delta: 691.0 MB). Free memory was 175.4 MB in the beginning and 544.3 MB in the end (delta: -369.0 MB). Peak memory consumption was 531.8 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: ((((((((((((a10 == 0 && 0 <= \old(a1) + 12) && a1 <= 23) && a19 <= 6) || !(9 <= \old(a19))) || ((9 <= a19 && a10 == 0) && 0 <= \old(a1) + 12)) || !(\old(a1) <= 23)) || !(\old(a19) <= 9)) || ((a19 == 8 && 41 <= a1) && a10 == 0)) || !(0 == \old(a10))) || (((9 <= a19 && a10 == 0) && a19 <= 9) && a1 == \old(a1))) || (a19 == 8 && 1 <= a10)) || ((a10 == 0 && 0 <= \old(a1) + 12) && 218 <= a1)) || (1 <= a10 && 0 <= \old(a1) + 12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 47.7s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 22.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 332 SDtfs, 4954 SDslu, 356 SDs, 0 SdLazy, 10758 SolverSat, 1553 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2659occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 874 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 270 PreInvPairs, 320 NumberOfFragments, 445 HoareAnnotationTreeSize, 270 FomulaSimplifications, 164951 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 23080 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 2864 NumberOfCodeBlocks, 2864 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2852 ConstructedInterpolants, 0 QuantifiedInterpolants, 1873782 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 2112/2128 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...