/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/Problem14_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 18:09:49,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 18:09:49,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 18:09:49,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 18:09:49,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 18:09:49,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 18:09:49,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 18:09:49,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 18:09:49,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 18:09:49,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 18:09:49,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 18:09:49,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 18:09:49,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 18:09:49,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 18:09:49,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 18:09:49,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 18:09:49,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 18:09:49,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 18:09:49,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 18:09:49,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 18:09:49,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 18:09:49,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 18:09:49,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 18:09:49,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 18:09:49,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 18:09:49,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 18:09:49,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 18:09:49,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 18:09:49,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 18:09:49,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 18:09:49,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 18:09:49,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 18:09:49,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 18:09:49,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 18:09:49,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 18:09:49,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 18:09:49,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 18:09:49,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 18:09:49,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 18:09:49,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 18:09:49,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 18:09:49,773 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 18:09:49,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 18:09:49,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 18:09:49,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 18:09:49,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 18:09:49,839 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 18:09:49,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 18:09:49,841 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 18:09:49,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 18:09:49,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 18:09:49,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 18:09:49,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 18:09:49,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 18:09:49,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 18:09:49,843 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 18:09:49,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 18:09:49,843 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 18:09:49,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 18:09:49,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 18:09:49,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 18:09:49,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 18:09:49,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 18:09:49,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 18:09:49,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 18:09:49,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 18:09:49,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 18:09:49,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 18:09:49,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 18:09:49,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 18:09:49,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 18:09:49,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 18:09:50,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 18:09:50,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 18:09:50,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 18:09:50,344 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 18:09:50,345 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 18:09:50,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label03.c [2020-10-27 18:09:50,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e16b0608c/e46d68c2528640abb95d9883f2e10ea8/FLAGb8e3d6326 [2020-10-27 18:09:51,187 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 18:09:51,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label03.c [2020-10-27 18:09:51,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e16b0608c/e46d68c2528640abb95d9883f2e10ea8/FLAGb8e3d6326 [2020-10-27 18:09:51,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e16b0608c/e46d68c2528640abb95d9883f2e10ea8 [2020-10-27 18:09:51,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 18:09:51,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 18:09:51,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 18:09:51,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 18:09:51,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 18:09:51,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:09:51" (1/1) ... [2020-10-27 18:09:51,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d456b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:51, skipping insertion in model container [2020-10-27 18:09:51,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:09:51" (1/1) ... [2020-10-27 18:09:51,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 18:09:51,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 18:09:52,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:09:52,171 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 18:09:52,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:09:52,375 INFO L208 MainTranslator]: Completed translation [2020-10-27 18:09:52,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52 WrapperNode [2020-10-27 18:09:52,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 18:09:52,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 18:09:52,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 18:09:52,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 18:09:52,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (1/1) ... [2020-10-27 18:09:52,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (1/1) ... [2020-10-27 18:09:52,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (1/1) ... [2020-10-27 18:09:52,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (1/1) ... [2020-10-27 18:09:52,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (1/1) ... [2020-10-27 18:09:52,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (1/1) ... [2020-10-27 18:09:52,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (1/1) ... [2020-10-27 18:09:52,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 18:09:52,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 18:09:52,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 18:09:52,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 18:09:52,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (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 18:09:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 18:09:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 18:09:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 18:09:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 18:09:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 18:09:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 18:09:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 18:09:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 18:09:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 18:09:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 18:09:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 18:09:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 18:09:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 18:09:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 18:09:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 18:09:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 18:09:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 18:09:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 18:09:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 18:09:54,232 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 18:09:54,232 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 18:09:54,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:09:54 BoogieIcfgContainer [2020-10-27 18:09:54,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 18:09:54,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 18:09:54,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 18:09:54,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 18:09:54,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:09:51" (1/3) ... [2020-10-27 18:09:54,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7a2381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:09:54, skipping insertion in model container [2020-10-27 18:09:54,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:52" (2/3) ... [2020-10-27 18:09:54,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7a2381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:09:54, skipping insertion in model container [2020-10-27 18:09:54,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:09:54" (3/3) ... [2020-10-27 18:09:54,245 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2020-10-27 18:09:54,258 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 18:09:54,265 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 18:09:54,280 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 18:09:54,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 18:09:54,312 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 18:09:54,313 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 18:09:54,313 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 18:09:54,313 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 18:09:54,313 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 18:09:54,313 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 18:09:54,313 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 18:09:54,338 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-27 18:09:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 18:09:54,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:09:54,349 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] [2020-10-27 18:09:54,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:09:54,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:09:54,356 INFO L82 PathProgramCache]: Analyzing trace with hash 35937696, now seen corresponding path program 1 times [2020-10-27 18:09:54,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:09:54,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231127329] [2020-10-27 18:09:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:09:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:55,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:55,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 18:09:55,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:55,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 683 [2020-10-27 18:09:55,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:09:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:09:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 18:09:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:09:55,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:09:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:55,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:55,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:55,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:09:55,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:55,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 18:09:55,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:09:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:09:55,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:09:55,503 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 18:09:55,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231127329] [2020-10-27 18:09:55,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:09:55,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 18:09:55,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068496373] [2020-10-27 18:09:55,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 18:09:55,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:09:55,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 18:09:55,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 18:09:55,539 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-27 18:09:57,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:09:57,961 INFO L93 Difference]: Finished difference Result 703 states and 1246 transitions. [2020-10-27 18:09:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:09:57,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-27 18:09:57,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:09:57,982 INFO L225 Difference]: With dead ends: 703 [2020-10-27 18:09:57,982 INFO L226 Difference]: Without dead ends: 381 [2020-10-27 18:09:57,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:09:58,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-27 18:09:58,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-27 18:09:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-27 18:09:58,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 553 transitions. [2020-10-27 18:09:58,086 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 553 transitions. Word has length 58 [2020-10-27 18:09:58,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:09:58,087 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 553 transitions. [2020-10-27 18:09:58,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 18:09:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 553 transitions. [2020-10-27 18:09:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-27 18:09:58,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:09:58,095 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:09:58,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 18:09:58,096 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:09:58,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:09:58,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1283510676, now seen corresponding path program 1 times [2020-10-27 18:09:58,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:09:58,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471029789] [2020-10-27 18:09:58,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:09:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:58,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:58,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:59,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:59,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 18:09:59,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:09:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1634 [2020-10-27 18:09:59,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:59,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:09:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-27 18:09:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 18:09:59,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:09:59,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:09:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:59,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:59,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:59,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:09:59,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:59,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:09:59,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:09:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:09:59,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:00,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:00,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:00,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:00,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 18:10:00,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 18:10:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 18:10:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:10:00,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471029789] [2020-10-27 18:10:00,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:00,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:00,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387289915] [2020-10-27 18:10:00,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:00,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:00,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:00,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:00,227 INFO L87 Difference]: Start difference. First operand 377 states and 553 transitions. Second operand 5 states. [2020-10-27 18:10:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:01,833 INFO L93 Difference]: Finished difference Result 785 states and 1145 transitions. [2020-10-27 18:10:01,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:01,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-27 18:10:01,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:01,840 INFO L225 Difference]: With dead ends: 785 [2020-10-27 18:10:01,840 INFO L226 Difference]: Without dead ends: 381 [2020-10-27 18:10:01,842 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 18:10:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-27 18:10:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-27 18:10:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-27 18:10:01,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 507 transitions. [2020-10-27 18:10:01,898 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 507 transitions. Word has length 127 [2020-10-27 18:10:01,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:01,901 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 507 transitions. [2020-10-27 18:10:01,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 507 transitions. [2020-10-27 18:10:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-27 18:10:01,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:01,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:10:01,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 18:10:01,911 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:01,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:01,912 INFO L82 PathProgramCache]: Analyzing trace with hash 352584804, now seen corresponding path program 1 times [2020-10-27 18:10:01,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:01,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781816329] [2020-10-27 18:10:01,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:02,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:02,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:03,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:03,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 18:10:03,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:10:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1286 [2020-10-27 18:10:03,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-27 18:10:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 18:10:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:03,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:03,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:03,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:03,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:03,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:03,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 18:10:03,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:10:03,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:03,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:03,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:03,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:10:03,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 18:10:03,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 18:10:03,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:10:03,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781816329] [2020-10-27 18:10:03,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:03,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:03,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539368759] [2020-10-27 18:10:03,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:03,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:03,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:03,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:03,593 INFO L87 Difference]: Start difference. First operand 377 states and 507 transitions. Second operand 5 states. [2020-10-27 18:10:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:05,923 INFO L93 Difference]: Finished difference Result 1120 states and 1526 transitions. [2020-10-27 18:10:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:05,924 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2020-10-27 18:10:05,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:05,930 INFO L225 Difference]: With dead ends: 1120 [2020-10-27 18:10:05,930 INFO L226 Difference]: Without dead ends: 749 [2020-10-27 18:10:05,932 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 18:10:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-10-27 18:10:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 745. [2020-10-27 18:10:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-27 18:10:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 933 transitions. [2020-10-27 18:10:05,981 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 933 transitions. Word has length 131 [2020-10-27 18:10:05,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:05,982 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 933 transitions. [2020-10-27 18:10:05,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 933 transitions. [2020-10-27 18:10:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-27 18:10:05,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:05,988 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, 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] [2020-10-27 18:10:05,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 18:10:05,988 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1734675980, now seen corresponding path program 1 times [2020-10-27 18:10:05,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:05,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40912541] [2020-10-27 18:10:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:06,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:06,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:06,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:06,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:11,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:11,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-27 18:10:11,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:10:11,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 18:10:11,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:11,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-27 18:10:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 18:10:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:10:11,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:11,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:11,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:11,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:11,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:10:11,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:11,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:11,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:11,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:11,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:11,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:11,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:11,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:11,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:10:11,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:11,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 18:10:11,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:11,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:11,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:10:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:11,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:11,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:11,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-27 18:10:11,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 18:10:11,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 18:10:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:11,420 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 18:10:11,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40912541] [2020-10-27 18:10:11,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:11,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:11,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542997791] [2020-10-27 18:10:11,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:11,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:11,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:11,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:11,424 INFO L87 Difference]: Start difference. First operand 745 states and 933 transitions. Second operand 5 states. [2020-10-27 18:10:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:12,778 INFO L93 Difference]: Finished difference Result 1500 states and 1887 transitions. [2020-10-27 18:10:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:12,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2020-10-27 18:10:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:12,786 INFO L225 Difference]: With dead ends: 1500 [2020-10-27 18:10:12,787 INFO L226 Difference]: Without dead ends: 749 [2020-10-27 18:10:12,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 18:10:12,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-10-27 18:10:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 745. [2020-10-27 18:10:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-27 18:10:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 931 transitions. [2020-10-27 18:10:12,847 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 931 transitions. Word has length 214 [2020-10-27 18:10:12,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:12,849 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 931 transitions. [2020-10-27 18:10:12,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:12,849 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 931 transitions. [2020-10-27 18:10:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-27 18:10:12,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:12,862 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, 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] [2020-10-27 18:10:12,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 18:10:12,863 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:12,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1388347204, now seen corresponding path program 1 times [2020-10-27 18:10:12,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:12,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468013057] [2020-10-27 18:10:12,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:12,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:13,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:13,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:13,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:17,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:17,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:17,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-27 18:10:17,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:10:17,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 18:10:17,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-10-27 18:10:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 18:10:17,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:18,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:18,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:18,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:18,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:18,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:10:18,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:18,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:18,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:18,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:18,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:10:18,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:10:18,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:18,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:18,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:18,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:18,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:18,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:10:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:18,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:18,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:18,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 18:10:18,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 18:10:18,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 18:10:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 18:10:18,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468013057] [2020-10-27 18:10:18,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:18,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:18,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284624819] [2020-10-27 18:10:18,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:18,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:18,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:18,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:18,388 INFO L87 Difference]: Start difference. First operand 745 states and 931 transitions. Second operand 5 states. [2020-10-27 18:10:19,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:19,814 INFO L93 Difference]: Finished difference Result 1513 states and 1896 transitions. [2020-10-27 18:10:19,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:19,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 225 [2020-10-27 18:10:19,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:19,821 INFO L225 Difference]: With dead ends: 1513 [2020-10-27 18:10:19,821 INFO L226 Difference]: Without dead ends: 749 [2020-10-27 18:10:19,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 18:10:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-10-27 18:10:19,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 745. [2020-10-27 18:10:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-27 18:10:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 929 transitions. [2020-10-27 18:10:19,858 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 929 transitions. Word has length 225 [2020-10-27 18:10:19,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:19,859 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 929 transitions. [2020-10-27 18:10:19,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 929 transitions. [2020-10-27 18:10:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-27 18:10:19,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:19,863 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:10:19,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 18:10:19,863 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:19,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:19,864 INFO L82 PathProgramCache]: Analyzing trace with hash -442995220, now seen corresponding path program 1 times [2020-10-27 18:10:19,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:19,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783943790] [2020-10-27 18:10:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:19,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:20,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:20,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:24,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:24,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:24,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 18:10:24,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:10:24,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 18:10:24,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-10-27 18:10:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 18:10:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:25,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:25,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:25,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:25,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:25,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:25,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 18:10:25,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:25,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:25,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:25,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:25,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:25,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:10:25,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:25,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:10:25,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:25,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:25,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:25,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:25,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:25,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:10:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:25,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:25,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:25,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 18:10:25,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 18:10:25,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 18:10:25,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 18:10:25,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783943790] [2020-10-27 18:10:25,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:25,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:25,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369553033] [2020-10-27 18:10:25,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:25,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:25,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:25,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:25,553 INFO L87 Difference]: Start difference. First operand 745 states and 929 transitions. Second operand 5 states. [2020-10-27 18:10:26,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:26,852 INFO L93 Difference]: Finished difference Result 1511 states and 1890 transitions. [2020-10-27 18:10:26,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:26,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2020-10-27 18:10:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:26,858 INFO L225 Difference]: With dead ends: 1511 [2020-10-27 18:10:26,858 INFO L226 Difference]: Without dead ends: 749 [2020-10-27 18:10:26,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 2 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 18:10:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-10-27 18:10:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 745. [2020-10-27 18:10:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-27 18:10:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 927 transitions. [2020-10-27 18:10:26,896 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 927 transitions. Word has length 230 [2020-10-27 18:10:26,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:26,897 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 927 transitions. [2020-10-27 18:10:26,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 927 transitions. [2020-10-27 18:10:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-27 18:10:26,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:26,901 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, 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] [2020-10-27 18:10:26,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 18:10:26,905 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:26,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:26,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1282859736, now seen corresponding path program 1 times [2020-10-27 18:10:26,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:26,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877773148] [2020-10-27 18:10:26,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:26,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:27,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:27,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:31,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:31,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:31,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-27 18:10:31,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:10:31,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-27 18:10:31,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-27 18:10:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 18:10:31,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:32,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:32,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:32,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:32,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:32,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:32,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:10:32,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:32,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:32,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:32,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:32,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:32,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:32,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:32,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:10:32,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:32,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 18:10:32,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:10:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:32,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:32,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:32,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 18:10:32,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:32,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 18:10:32,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:32,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 18:10:32,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:10:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 18:10:32,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877773148] [2020-10-27 18:10:32,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:32,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:32,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549244538] [2020-10-27 18:10:32,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:32,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:32,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:32,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:32,356 INFO L87 Difference]: Start difference. First operand 745 states and 927 transitions. Second operand 5 states. [2020-10-27 18:10:34,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:34,544 INFO L93 Difference]: Finished difference Result 2040 states and 2599 transitions. [2020-10-27 18:10:34,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:34,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-10-27 18:10:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:34,554 INFO L225 Difference]: With dead ends: 2040 [2020-10-27 18:10:34,554 INFO L226 Difference]: Without dead ends: 1301 [2020-10-27 18:10:34,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 18:10:34,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-10-27 18:10:34,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1297. [2020-10-27 18:10:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1297 states. [2020-10-27 18:10:34,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1594 transitions. [2020-10-27 18:10:34,601 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1594 transitions. Word has length 235 [2020-10-27 18:10:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:34,602 INFO L481 AbstractCegarLoop]: Abstraction has 1297 states and 1594 transitions. [2020-10-27 18:10:34,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1594 transitions. [2020-10-27 18:10:34,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-27 18:10:34,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:34,607 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:34,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 18:10:34,608 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:34,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:34,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1763459728, now seen corresponding path program 1 times [2020-10-27 18:10:34,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:34,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844577270] [2020-10-27 18:10:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:34,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:34,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:35,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:37,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:37,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-27 18:10:37,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:10:37,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2870 [2020-10-27 18:10:37,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:37,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:37,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-27 18:10:37,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 18:10:37,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:37,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:37,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:37,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:37,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:37,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:10:37,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:37,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:37,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:37,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:37,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:10:37,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 18:10:37,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-27 18:10:37,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:37,997 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:10:37,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844577270] [2020-10-27 18:10:37,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:38,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:38,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226550425] [2020-10-27 18:10:38,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:38,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:38,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:38,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:38,004 INFO L87 Difference]: Start difference. First operand 1297 states and 1594 transitions. Second operand 5 states. [2020-10-27 18:10:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:40,138 INFO L93 Difference]: Finished difference Result 3144 states and 3948 transitions. [2020-10-27 18:10:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:40,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-10-27 18:10:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:40,150 INFO L225 Difference]: With dead ends: 3144 [2020-10-27 18:10:40,150 INFO L226 Difference]: Without dead ends: 1853 [2020-10-27 18:10:40,154 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 18:10:40,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2020-10-27 18:10:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1849. [2020-10-27 18:10:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1849 states. [2020-10-27 18:10:40,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2281 transitions. [2020-10-27 18:10:40,217 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2281 transitions. Word has length 237 [2020-10-27 18:10:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:40,218 INFO L481 AbstractCegarLoop]: Abstraction has 1849 states and 2281 transitions. [2020-10-27 18:10:40,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:40,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2281 transitions. [2020-10-27 18:10:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-27 18:10:40,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:40,224 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, 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] [2020-10-27 18:10:40,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 18:10:40,224 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:40,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:40,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1445709252, now seen corresponding path program 1 times [2020-10-27 18:10:40,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:40,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335503124] [2020-10-27 18:10:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:40,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:40,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:40,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:41,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:44,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:44,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-27 18:10:44,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:10:44,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4558 [2020-10-27 18:10:44,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-27 18:10:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 18:10:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:44,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:44,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:44,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:44,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:44,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 18:10:44,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:44,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:44,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:44,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:44,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:44,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:10:44,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:44,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:10:44,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:44,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:44,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:44,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:44,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:10:44,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:10:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:45,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:45,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:45,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 18:10:45,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:45,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 18:10:45,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 18:10:45,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 18:10:45,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335503124] [2020-10-27 18:10:45,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:45,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:10:45,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105472517] [2020-10-27 18:10:45,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:10:45,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:45,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:10:45,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:10:45,142 INFO L87 Difference]: Start difference. First operand 1849 states and 2281 transitions. Second operand 6 states. [2020-10-27 18:10:47,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:47,920 INFO L93 Difference]: Finished difference Result 3144 states and 4070 transitions. [2020-10-27 18:10:47,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:10:47,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 250 [2020-10-27 18:10:47,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:47,944 INFO L225 Difference]: With dead ends: 3144 [2020-10-27 18:10:47,944 INFO L226 Difference]: Without dead ends: 3141 [2020-10-27 18:10:47,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:10:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2020-10-27 18:10:48,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2041. [2020-10-27 18:10:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2041 states. [2020-10-27 18:10:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2592 transitions. [2020-10-27 18:10:48,052 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2592 transitions. Word has length 250 [2020-10-27 18:10:48,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:48,053 INFO L481 AbstractCegarLoop]: Abstraction has 2041 states and 2592 transitions. [2020-10-27 18:10:48,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:10:48,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2592 transitions. [2020-10-27 18:10:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-27 18:10:48,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:48,061 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:48,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 18:10:48,062 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:48,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:48,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1915781480, now seen corresponding path program 1 times [2020-10-27 18:10:48,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:48,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859334745] [2020-10-27 18:10:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:48,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:48,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:48,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:49,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 18:10:53,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:10:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 18:10:53,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-27 18:10:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 18:10:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:53,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:53,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:53,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:53,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:53,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:10:53,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:53,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:53,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:53,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:53,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:10:53,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:53,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 18:10:53,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:53,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:53,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:53,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:53,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:10:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:53,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:53,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:53,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 18:10:53,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-27 18:10:53,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:53,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-27 18:10:53,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 18:10:53,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859334745] [2020-10-27 18:10:53,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:53,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:53,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289356807] [2020-10-27 18:10:53,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:53,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:53,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:53,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:53,750 INFO L87 Difference]: Start difference. First operand 2041 states and 2592 transitions. Second operand 5 states. [2020-10-27 18:10:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:55,133 INFO L93 Difference]: Finished difference Result 4091 states and 5220 transitions. [2020-10-27 18:10:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:55,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-10-27 18:10:55,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:55,148 INFO L225 Difference]: With dead ends: 4091 [2020-10-27 18:10:55,148 INFO L226 Difference]: Without dead ends: 2045 [2020-10-27 18:10:55,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 18:10:55,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-10-27 18:10:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2041. [2020-10-27 18:10:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2041 states. [2020-10-27 18:10:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2581 transitions. [2020-10-27 18:10:55,227 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2581 transitions. Word has length 296 [2020-10-27 18:10:55,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:55,228 INFO L481 AbstractCegarLoop]: Abstraction has 2041 states and 2581 transitions. [2020-10-27 18:10:55,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2581 transitions. [2020-10-27 18:10:55,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-27 18:10:55,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:55,286 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:10:55,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 18:10:55,286 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:55,287 INFO L82 PathProgramCache]: Analyzing trace with hash -143808148, now seen corresponding path program 1 times [2020-10-27 18:10:55,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:55,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074146505] [2020-10-27 18:10:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:55,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:55,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:55,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:58,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:58,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:00,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:00,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-27 18:11:00,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:11:00,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 18:11:00,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:11:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 320 [2020-10-27 18:11:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 18:11:00,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:11:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:00,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:00,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:00,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:11:00,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:00,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:11:00,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:11:00,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:00,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:11:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:11:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:00,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:00,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:00,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:11:00,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:00,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 18:11:00,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:11:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:11:00,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:00,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:11:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:00,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:00,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:00,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 18:11:00,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:00,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 18:11:00,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:11:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:00,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:11:00,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:11:00,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-27 18:11:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:00,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:00,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:00,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 18:11:00,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:00,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-27 18:11:00,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:11:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 18:11:00,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-27 18:11:01,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074146505] [2020-10-27 18:11:01,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:11:01,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:11:01,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592252852] [2020-10-27 18:11:01,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:11:01,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:11:01,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:11:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:11:01,009 INFO L87 Difference]: Start difference. First operand 2041 states and 2581 transitions. Second operand 5 states. [2020-10-27 18:11:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:11:02,437 INFO L93 Difference]: Finished difference Result 3907 states and 4911 transitions. [2020-10-27 18:11:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:11:02,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 364 [2020-10-27 18:11:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:11:02,438 INFO L225 Difference]: With dead ends: 3907 [2020-10-27 18:11:02,438 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 18:11:02,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:11:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 18:11:02,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 18:11:02,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 18:11:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 18:11:02,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 364 [2020-10-27 18:11:02,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:11:02,449 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 18:11:02,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:11:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 18:11:02,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 18:11:02,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 18:11:02,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 18:11:02,693 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 36 [2020-10-27 18:11:03,142 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 36 [2020-10-27 18:11:04,017 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 56 [2020-10-27 18:11:04,287 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 36 [2020-10-27 18:11:04,292 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 18:11:04,293 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 18:11:04,293 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 18:11:04,294 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 18:11:04,294 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:11:04,297 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~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)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-27 18:11:04,297 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:11:04,297 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-27 18:11:04,297 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-27 18:11:04,297 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 18:11:04,297 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-27 18:11:04,297 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-27 18:11:04,298 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-27 18:11:04,298 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-27 18:11:04,298 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-27 18:11:04,299 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-27 18:11:04,300 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,300 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,300 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,301 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-27 18:11:04,302 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-27 18:11:04,302 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-27 18:11:04,302 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-27 18:11:04,302 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-27 18:11:04,302 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-27 18:11:04,302 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-27 18:11:04,303 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-27 18:11:04,303 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,303 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,303 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,305 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-27 18:11:04,305 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-27 18:11:04,305 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-27 18:11:04,305 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-27 18:11:04,305 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-27 18:11:04,306 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-27 18:11:04,307 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-27 18:11:04,307 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-27 18:11:04,307 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-27 18:11:04,307 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-27 18:11:04,307 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-27 18:11:04,307 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,308 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,308 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,308 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,309 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,310 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,310 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-27 18:11:04,310 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-27 18:11:04,310 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-27 18:11:04,310 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,311 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,312 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-27 18:11:04,313 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse8 (= ~a24~0 |old(~a24~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a12~0 |old(~a12~0)|)) (.cse9 (= ~a15~0 |old(~a15~0)|)) (.cse7 (= 5 |old(~a15~0)|))) (let ((.cse0 (not (= |old(~a24~0)| 1))) (.cse1 (= 5 ~a15~0)) (.cse3 (= ~a24~0 1)) (.cse5 (not .cse7)) (.cse6 (and .cse8 .cse2 .cse4 .cse9))) (and (or (not (= 10 |old(~a21~0)|)) .cse0 (not (<= (+ |old(~a12~0)| 1) 0)) (and .cse1 .cse2 .cse3 .cse4) (not (<= 0 (+ |old(~a12~0)| 7))) .cse5) (or (not (<= (+ |old(~a12~0)| 7499) 0)) .cse0 (not (= 9 |old(~a21~0)|)) (and .cse1 .cse3 (= ~a21~0 9) .cse4) .cse5) (or .cse6 (not (<= 12 |old(~a12~0)|))) (or .cse7 .cse6) (or (and .cse8 (= ~a21~0 6) .cse4 .cse9) (not (= 6 |old(~a21~0)|)))))) [2020-10-27 18:11:04,313 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-27 18:11:04,313 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-27 18:11:04,313 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-27 18:11:04,313 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-27 18:11:04,314 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-27 18:11:04,314 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-27 18:11:04,314 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-27 18:11:04,315 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,315 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,316 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,316 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-27 18:11:04,316 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-27 18:11:04,317 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-27 18:11:04,318 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-27 18:11:04,319 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-27 18:11:04,320 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-27 18:11:04,321 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,322 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,323 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-27 18:11:04,324 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,325 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L270 CegarLoopResult]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (= |old(~a24~0)| 1)))) (and (= 5 |old(~a15~0)|) (not (<= 12 |old(~a12~0)|)) (or (not (<= (+ |old(~a12~0)| 7499) 0)) .cse0 (not (= 9 |old(~a21~0)|))) (or (not (= 10 |old(~a21~0)|)) .cse0 (not (<= (+ |old(~a12~0)| 1) 0)) (not (<= 0 (+ |old(~a12~0)| 7)))) (not (= 6 |old(~a21~0)|)))) [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L159-1(line 159) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,326 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,327 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-27 18:11:04,328 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-27 18:11:04,328 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-27 18:11:04,328 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-27 18:11:04,328 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-27 18:11:04,328 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-27 18:11:04,328 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-27 18:11:04,328 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-27 18:11:04,329 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-27 18:11:04,329 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,330 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,331 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:11:04,331 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:11:04,332 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~a15~0 8) [2020-10-27 18:11:04,332 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 18:11:04,332 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:11:04,332 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|))) [2020-10-27 18:11:04,332 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (not (= 5 ~a15~0)) (<= 12 ~a12~0) (= ~a21~0 6) (not (= 8 |old(~a15~0)|)) (and .cse0 (= ~a21~0 9) (<= (+ ~a12~0 7499) 0)) (and (<= (+ ~a12~0 1) 0) (= ~a21~0 10) (<= 0 (+ ~a12~0 7)) .cse0))) [2020-10-27 18:11:04,332 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-27 18:11:04,332 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:11:04,335 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-27 18:11:04,335 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (not (= 5 ~a15~0)) (<= 12 ~a12~0) (= ~a21~0 6) (not (= 8 |old(~a15~0)|)) (and .cse0 (= ~a21~0 9) (<= (+ ~a12~0 7499) 0)) (and (<= (+ ~a12~0 1) 0) (= ~a21~0 10) (<= 0 (+ ~a12~0 7)) .cse0))) [2020-10-27 18:11:04,335 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:11:04,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 06:11:04 BoogieIcfgContainer [2020-10-27 18:11:04,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 18:11:04,365 INFO L168 Benchmark]: Toolchain (without parser) took 72950.98 ms. Allocated memory was 151.0 MB in the beginning and 958.4 MB in the end (delta: 807.4 MB). Free memory was 124.6 MB in the beginning and 893.1 MB in the end (delta: -768.5 MB). Peak memory consumption was 575.3 MB. Max. memory is 8.0 GB. [2020-10-27 18:11:04,366 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 18:11:04,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 956.05 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 127.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. [2020-10-27 18:11:04,368 INFO L168 Benchmark]: Boogie Preprocessor took 172.89 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 122.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 18:11:04,369 INFO L168 Benchmark]: RCFGBuilder took 1684.80 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 122.1 MB in the beginning and 110.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. [2020-10-27 18:11:04,370 INFO L168 Benchmark]: TraceAbstraction took 70125.80 ms. Allocated memory was 181.4 MB in the beginning and 958.4 MB in the end (delta: 777.0 MB). Free memory was 109.9 MB in the beginning and 893.1 MB in the end (delta: -783.2 MB). Peak memory consumption was 529.1 MB. Max. memory is 8.0 GB. [2020-10-27 18:11:04,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 956.05 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 127.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 172.89 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 122.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1684.80 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 122.1 MB in the beginning and 110.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 70125.80 ms. Allocated memory was 181.4 MB in the beginning and 958.4 MB in the end (delta: 777.0 MB). Free memory was 109.9 MB in the beginning and 893.1 MB in the end (delta: -783.2 MB). Peak memory consumption was 529.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: ((((!(5 == a15) || 12 <= a12) || a21 == 6) || !(8 == \old(a15))) || ((a24 == 1 && a21 == 9) && a12 + 7499 <= 0)) || (((a12 + 1 <= 0 && a21 == 10) && 0 <= a12 + 7) && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 68.1s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 271 SDtfs, 3628 SDslu, 217 SDs, 0 SdLazy, 9126 SolverSat, 564 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2041occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 1136 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 151 PreInvPairs, 185 NumberOfFragments, 344 HoareAnnotationTreeSize, 151 FomulaSimplifications, 273624 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1694 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 45.3s InterpolantComputationTime, 2367 NumberOfCodeBlocks, 2367 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2356 ConstructedInterpolants, 0 QuantifiedInterpolants, 1333155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 1570/1588 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...