/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 17:28:21,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 17:28:21,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 17:28:21,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 17:28:21,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 17:28:21,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 17:28:21,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 17:28:21,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 17:28:21,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 17:28:21,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 17:28:21,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 17:28:21,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 17:28:21,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 17:28:21,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 17:28:21,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 17:28:21,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 17:28:21,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 17:28:21,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 17:28:21,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 17:28:21,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 17:28:21,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 17:28:21,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 17:28:21,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 17:28:21,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 17:28:21,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 17:28:21,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 17:28:21,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 17:28:21,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 17:28:21,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 17:28:21,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 17:28:21,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 17:28:21,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 17:28:21,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 17:28:21,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 17:28:21,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 17:28:21,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 17:28:21,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 17:28:21,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 17:28:21,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 17:28:21,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 17:28:21,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 17:28:21,643 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 17:28:21,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 17:28:21,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 17:28:21,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 17:28:21,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 17:28:21,698 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 17:28:21,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 17:28:21,698 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 17:28:21,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 17:28:21,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 17:28:21,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 17:28:21,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 17:28:21,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 17:28:21,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 17:28:21,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 17:28:21,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 17:28:21,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 17:28:21,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 17:28:21,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 17:28:21,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 17:28:21,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 17:28:21,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 17:28:21,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 17:28:21,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 17:28:21,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 17:28:21,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 17:28:21,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 17:28:21,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 17:28:21,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 17:28:21,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 17:28:21,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 17:28:22,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 17:28:22,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 17:28:22,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 17:28:22,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 17:28:22,220 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 17:28:22,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-10-27 17:28:22,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89e764b15/59fa83caf713444c85430df964f11738/FLAG3cd02693e [2020-10-27 17:28:23,028 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 17:28:23,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-10-27 17:28:23,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89e764b15/59fa83caf713444c85430df964f11738/FLAG3cd02693e [2020-10-27 17:28:23,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89e764b15/59fa83caf713444c85430df964f11738 [2020-10-27 17:28:23,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 17:28:23,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 17:28:23,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 17:28:23,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 17:28:23,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 17:28:23,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:23,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128c89f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23, skipping insertion in model container [2020-10-27 17:28:23,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:23,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 17:28:23,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 17:28:23,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 17:28:23,755 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 17:28:23,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 17:28:23,893 INFO L208 MainTranslator]: Completed translation [2020-10-27 17:28:23,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23 WrapperNode [2020-10-27 17:28:23,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 17:28:23,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 17:28:23,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 17:28:23,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 17:28:23,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:23,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:23,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:23,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:23,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:23,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:24,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... [2020-10-27 17:28:24,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 17:28:24,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 17:28:24,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 17:28:24,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 17:28:24,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 17:28:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 17:28:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 17:28:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 17:28:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 17:28:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 17:28:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 17:28:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 17:28:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 17:28:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 17:28:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 17:28:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 17:28:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 17:28:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 17:28:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 17:28:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 17:28:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 17:28:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 17:28:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 17:28:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 17:28:25,526 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 17:28:25,527 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 17:28:25,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:28:25 BoogieIcfgContainer [2020-10-27 17:28:25,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 17:28:25,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 17:28:25,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 17:28:25,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 17:28:25,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:28:23" (1/3) ... [2020-10-27 17:28:25,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd13c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:28:25, skipping insertion in model container [2020-10-27 17:28:25,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:23" (2/3) ... [2020-10-27 17:28:25,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd13c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:28:25, skipping insertion in model container [2020-10-27 17:28:25,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:28:25" (3/3) ... [2020-10-27 17:28:25,545 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2020-10-27 17:28:25,559 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 17:28:25,565 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 17:28:25,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 17:28:25,636 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 17:28:25,637 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 17:28:25,637 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 17:28:25,637 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 17:28:25,637 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 17:28:25,637 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 17:28:25,637 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 17:28:25,637 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 17:28:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-27 17:28:25,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 17:28:25,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:25,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:28:25,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:25,690 INFO L82 PathProgramCache]: Analyzing trace with hash -606785844, now seen corresponding path program 1 times [2020-10-27 17:28:25,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:25,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230750739] [2020-10-27 17:28:25,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:26,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:26,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 17:28:26,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:26,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 670 [2020-10-27 17:28:26,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 17:28:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 17:28:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 17:28:26,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 17:28:26,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:26,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:26,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:26,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:26,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:26,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 17:28:26,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 17:28:26,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:28:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:28:26,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230750739] [2020-10-27 17:28:26,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 17:28:26,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 17:28:26,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350163074] [2020-10-27 17:28:26,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:26,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:26,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:26,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:26,916 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-27 17:28:29,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:29,654 INFO L93 Difference]: Finished difference Result 735 states and 1306 transitions. [2020-10-27 17:28:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 17:28:29,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-10-27 17:28:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:29,691 INFO L225 Difference]: With dead ends: 735 [2020-10-27 17:28:29,693 INFO L226 Difference]: Without dead ends: 448 [2020-10-27 17:28:29,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 17:28:29,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-27 17:28:29,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 444. [2020-10-27 17:28:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-27 17:28:29,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 596 transitions. [2020-10-27 17:28:29,834 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 596 transitions. Word has length 64 [2020-10-27 17:28:29,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:29,834 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 596 transitions. [2020-10-27 17:28:29,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:29,835 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 596 transitions. [2020-10-27 17:28:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-27 17:28:29,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:29,849 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:28:29,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 17:28:29,849 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:29,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:29,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1831936336, now seen corresponding path program 1 times [2020-10-27 17:28:29,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:29,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711227559] [2020-10-27 17:28:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:29,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:30,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:30,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:30,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-27 17:28:30,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:28:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-10-27 17:28:30,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-27 17:28:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 17:28:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:28:30,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:30,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:30,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:30,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 17:28:30,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:30,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:30,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:30,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:30,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 17:28:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-27 17:28:30,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 17:28:30,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:28:30,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711227559] [2020-10-27 17:28:30,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:30,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:30,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186439178] [2020-10-27 17:28:30,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:30,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:30,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:30,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:30,952 INFO L87 Difference]: Start difference. First operand 444 states and 596 transitions. Second operand 5 states. [2020-10-27 17:28:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:32,085 INFO L93 Difference]: Finished difference Result 909 states and 1225 transitions. [2020-10-27 17:28:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:32,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-27 17:28:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:32,090 INFO L225 Difference]: With dead ends: 909 [2020-10-27 17:28:32,090 INFO L226 Difference]: Without dead ends: 448 [2020-10-27 17:28:32,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:32,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-27 17:28:32,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 444. [2020-10-27 17:28:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-27 17:28:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 593 transitions. [2020-10-27 17:28:32,132 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 593 transitions. Word has length 143 [2020-10-27 17:28:32,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:32,133 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 593 transitions. [2020-10-27 17:28:32,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:32,134 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 593 transitions. [2020-10-27 17:28:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-27 17:28:32,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:32,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:28:32,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 17:28:32,147 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:32,151 INFO L82 PathProgramCache]: Analyzing trace with hash -53098232, now seen corresponding path program 1 times [2020-10-27 17:28:32,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:32,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689305215] [2020-10-27 17:28:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:32,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-27 17:28:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:28:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1063 [2020-10-27 17:28:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-27 17:28:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 17:28:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:28:33,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:33,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:33,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:33,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:33,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:33,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 17:28:33,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:33,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 17:28:33,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:33,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:33,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:33,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 17:28:33,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-27 17:28:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 17:28:33,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:28:33,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689305215] [2020-10-27 17:28:33,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:33,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:33,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609284242] [2020-10-27 17:28:33,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:33,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:33,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:33,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:33,764 INFO L87 Difference]: Start difference. First operand 444 states and 593 transitions. Second operand 5 states. [2020-10-27 17:28:35,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:35,123 INFO L93 Difference]: Finished difference Result 1321 states and 1805 transitions. [2020-10-27 17:28:35,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:35,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2020-10-27 17:28:35,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:35,131 INFO L225 Difference]: With dead ends: 1321 [2020-10-27 17:28:35,131 INFO L226 Difference]: Without dead ends: 883 [2020-10-27 17:28:35,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-27 17:28:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-27 17:28:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-27 17:28:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1150 transitions. [2020-10-27 17:28:35,169 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1150 transitions. Word has length 179 [2020-10-27 17:28:35,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:35,170 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1150 transitions. [2020-10-27 17:28:35,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:35,171 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1150 transitions. [2020-10-27 17:28:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-27 17:28:35,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:35,178 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 17:28:35,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 17:28:35,179 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:35,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1328950204, now seen corresponding path program 1 times [2020-10-27 17:28:35,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:35,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133414310] [2020-10-27 17:28:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:35,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:35,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:37,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:37,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-27 17:28:37,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 17:28:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1917 [2020-10-27 17:28:37,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-27 17:28:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 17:28:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 17:28:37,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:37,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:37,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:37,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 17:28:37,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:37,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:37,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:37,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:37,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:37,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 17:28:37,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:37,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 17:28:37,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:37,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:37,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 17:28:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:37,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:37,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:37,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-27 17:28:37,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 17:28:37,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:37,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 17:28:37,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-27 17:28:37,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133414310] [2020-10-27 17:28:37,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:37,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:37,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723530194] [2020-10-27 17:28:37,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:37,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:37,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:37,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:37,577 INFO L87 Difference]: Start difference. First operand 879 states and 1150 transitions. Second operand 5 states. [2020-10-27 17:28:39,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:39,044 INFO L93 Difference]: Finished difference Result 2046 states and 2737 transitions. [2020-10-27 17:28:39,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:39,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-10-27 17:28:39,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:39,054 INFO L225 Difference]: With dead ends: 2046 [2020-10-27 17:28:39,054 INFO L226 Difference]: Without dead ends: 883 [2020-10-27 17:28:39,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:39,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-27 17:28:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-27 17:28:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-27 17:28:39,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1135 transitions. [2020-10-27 17:28:39,108 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1135 transitions. Word has length 216 [2020-10-27 17:28:39,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:39,109 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1135 transitions. [2020-10-27 17:28:39,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:39,109 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1135 transitions. [2020-10-27 17:28:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-27 17:28:39,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:39,118 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 17:28:39,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 17:28:39,118 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:39,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:39,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1918820104, now seen corresponding path program 1 times [2020-10-27 17:28:39,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:39,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363951170] [2020-10-27 17:28:39,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:39,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:40,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-27 17:28:40,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:28:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-10-27 17:28:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 199 [2020-10-27 17:28:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 17:28:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:40,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:40,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:40,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:40,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:40,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 17:28:40,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:40,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:40,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:40,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:40,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 17:28:40,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:40,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 17:28:40,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:40,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:40,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 17:28:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:40,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:40,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:40,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 17:28:40,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:40,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 17:28:40,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:40,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:40,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:40,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 17:28:40,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-27 17:28:40,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363951170] [2020-10-27 17:28:40,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:40,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:40,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993905052] [2020-10-27 17:28:40,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:40,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:40,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:40,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:40,838 INFO L87 Difference]: Start difference. First operand 879 states and 1135 transitions. Second operand 5 states. [2020-10-27 17:28:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:42,296 INFO L93 Difference]: Finished difference Result 1898 states and 2449 transitions. [2020-10-27 17:28:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:42,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 251 [2020-10-27 17:28:42,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:42,300 INFO L225 Difference]: With dead ends: 1898 [2020-10-27 17:28:42,300 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 17:28:42,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:42,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 17:28:42,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 17:28:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 17:28:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 17:28:42,306 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 251 [2020-10-27 17:28:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:42,307 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 17:28:42,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 17:28:42,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 17:28:42,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 17:28:42,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 17:28:42,969 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 46 [2020-10-27 17:28:43,105 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 17:28:43,105 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 17:28:43,106 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 17:28:43,106 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 17:28:43,106 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 17:28:43,106 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-27 17:28:43,106 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 17:28:43,107 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-27 17:28:43,107 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-27 17:28:43,107 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-27 17:28:43,107 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-27 17:28:43,107 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-27 17:28:43,108 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-27 17:28:43,108 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 17:28:43,108 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-27 17:28:43,108 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-27 17:28:43,109 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-27 17:28:43,109 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-27 17:28:43,109 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-27 17:28:43,110 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-27 17:28:43,110 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,110 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,110 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,110 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,110 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,110 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 17:28:43,111 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-27 17:28:43,112 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-27 17:28:43,113 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-27 17:28:43,113 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-27 17:28:43,113 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-27 17:28:43,113 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-27 17:28:43,114 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-27 17:28:43,114 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-27 17:28:43,114 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-27 17:28:43,114 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-27 17:28:43,114 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-27 17:28:43,114 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-27 17:28:43,114 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-27 17:28:43,115 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,115 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,116 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,116 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,116 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,116 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L270 CegarLoopResult]: At program point L177(line 177) the Hoare annotation is: (and (not (<= 10 |old(~a19~0)|)) (= |old(~a10~0)| 1) (not (= 9 |old(~a19~0)|)) (or (not (<= 331498 |old(~a1~0)|)) (not (<= 8 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (= ~a12~0 0))) (not (= 7 |old(~a19~0)|))) [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L177-1(line 177) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-27 17:28:43,118 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-27 17:28:43,119 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-27 17:28:43,120 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-27 17:28:43,120 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-27 17:28:43,120 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-27 17:28:43,121 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-27 17:28:43,121 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-27 17:28:43,121 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-27 17:28:43,121 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-27 17:28:43,121 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-27 17:28:43,121 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-27 17:28:43,122 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-27 17:28:43,123 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-27 17:28:43,123 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-27 17:28:43,123 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,124 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 17:28:43,125 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-27 17:28:43,126 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-27 17:28:43,126 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-27 17:28:43,126 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-27 17:28:43,127 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-27 17:28:43,128 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-27 17:28:43,128 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-27 17:28:43,128 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-27 17:28:43,128 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-27 17:28:43,128 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-27 17:28:43,128 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-27 17:28:43,128 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,129 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-27 17:28:43,131 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse1 (= ~a1~0 |old(~a1~0)|)) (.cse2 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse1 (= ~a19~0 |old(~a19~0)|) .cse2))) (and (or (not (<= 10 |old(~a19~0)|)) .cse0) (or (= |old(~a10~0)| 1) .cse0) (or .cse0 (not (= 7 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or (not (<= |old(~a19~0)| 8)) (not (<= 331498 |old(~a1~0)|)) (not (<= 8 |old(~a19~0)|)) (not (= 14 ~a4~0)) (and (<= 8 ~a19~0) (<= ~a19~0 8) .cse1 .cse2) (not (= ~a12~0 0)))))) [2020-10-27 17:28:43,131 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-27 17:28:43,131 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-27 17:28:43,131 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-27 17:28:43,131 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-27 17:28:43,131 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-27 17:28:43,131 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-27 17:28:43,131 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,132 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-27 17:28:43,133 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,134 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-27 17:28:43,135 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,136 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,137 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:28:43,137 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 17:28:43,137 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9)) [2020-10-27 17:28:43,137 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 17:28:43,137 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 17:28:43,137 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2020-10-27 17:28:43,137 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-27 17:28:43,137 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (not (= ~a10~0 1)) (= 7 ~a19~0) (not (= 9 |old(~a19~0)|)) (<= 10 ~a19~0) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (<= 331498 ~a1~0) (<= 8 ~a19~0) (= 14 ~a4~0) (= ~a12~0 0))) [2020-10-27 17:28:43,138 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-27 17:28:43,138 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-27 17:28:43,138 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (not (= ~a10~0 1)) (= 7 ~a19~0) (not (= 9 |old(~a19~0)|)) (<= 10 ~a19~0) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (<= 331498 ~a1~0) (<= 8 ~a19~0) (= 14 ~a4~0) (= ~a12~0 0))) [2020-10-27 17:28:43,138 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-27 17:28:43,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:28:43 BoogieIcfgContainer [2020-10-27 17:28:43,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 17:28:43,171 INFO L168 Benchmark]: Toolchain (without parser) took 19917.91 ms. Allocated memory was 152.0 MB in the beginning and 460.3 MB in the end (delta: 308.3 MB). Free memory was 124.7 MB in the beginning and 255.4 MB in the end (delta: -130.7 MB). Peak memory consumption was 178.4 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:43,171 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 152.0 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 17:28:43,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.88 ms. Allocated memory is still 152.0 MB. Free memory was 124.1 MB in the beginning and 128.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:43,174 INFO L168 Benchmark]: Boogie Preprocessor took 124.13 ms. Allocated memory is still 152.0 MB. Free memory was 128.5 MB in the beginning and 123.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:43,181 INFO L168 Benchmark]: RCFGBuilder took 1510.22 ms. Allocated memory was 152.0 MB in the beginning and 199.2 MB in the end (delta: 47.2 MB). Free memory was 123.8 MB in the beginning and 122.8 MB in the end (delta: 989.8 kB). Peak memory consumption was 51.8 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:43,182 INFO L168 Benchmark]: TraceAbstraction took 17632.90 ms. Allocated memory was 199.2 MB in the beginning and 460.3 MB in the end (delta: 261.1 MB). Free memory was 122.8 MB in the beginning and 255.4 MB in the end (delta: -132.6 MB). Peak memory consumption was 129.0 MB. Max. memory is 8.0 GB. [2020-10-27 17:28:43,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 152.0 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.88 ms. Allocated memory is still 152.0 MB. Free memory was 124.1 MB in the beginning and 128.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 124.13 ms. Allocated memory is still 152.0 MB. Free memory was 128.5 MB in the beginning and 123.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1510.22 ms. Allocated memory was 152.0 MB in the beginning and 199.2 MB in the end (delta: 47.2 MB). Free memory was 123.8 MB in the beginning and 122.8 MB in the end (delta: 989.8 kB). Peak memory consumption was 51.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17632.90 ms. Allocated memory was 199.2 MB in the beginning and 460.3 MB in the end (delta: 261.1 MB). Free memory was 122.8 MB in the beginning and 255.4 MB in the end (delta: -132.6 MB). Peak memory consumption was 129.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((!(a10 == 1) || 7 == a19) || !(9 == \old(a19))) || 10 <= a19) || a19 == 9) || !(0 == \old(a10))) || (((331498 <= a1 && 8 <= a19) && 14 == a4) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.6s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 122 SDtfs, 1844 SDslu, 100 SDs, 0 SdLazy, 3421 SolverSat, 582 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=879occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 71 PreInvPairs, 93 NumberOfFragments, 286 HoareAnnotationTreeSize, 71 FomulaSimplifications, 4888 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 798 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 853 NumberOfCodeBlocks, 853 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 848 ConstructedInterpolants, 0 QuantifiedInterpolants, 382031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 472/478 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...