/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/recursive/Addition01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:26:58,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:26:58,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:26:58,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:26:58,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:26:58,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:26:58,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:26:58,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:26:58,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:26:58,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:26:58,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:26:58,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:26:58,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:26:58,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:26:58,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:26:58,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:26:58,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:26:58,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:26:58,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:26:58,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:26:58,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:26:58,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:26:58,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:26:58,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:26:58,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:26:58,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:26:58,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:26:58,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:26:58,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:26:58,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:26:58,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:26:58,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:26:58,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:26:58,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:26:58,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:26:58,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:26:58,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:26:58,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:26:58,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:26:58,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:26:58,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:26:58,787 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 22:26:58,836 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:26:58,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:26:58,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:26:58,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:26:58,842 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:26:58,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:26:58,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:26:58,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:26:58,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:26:58,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:26:58,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:26:58,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:26:58,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:26:58,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:26:58,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:26:58,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:26:58,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:26:58,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:26:58,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:26:58,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:26:58,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:26:58,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:26:58,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:26:58,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:26:58,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:26:58,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:26:58,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:26:58,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:26:58,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:26:58,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:26:59,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:26:59,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:26:59,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:26:59,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:26:59,295 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:26:59,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition01-2.c [2020-10-27 22:26:59,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e421425b1/6f9acee403d94edca4402b671db0e51b/FLAGc499a11d2 [2020-10-27 22:26:59,978 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:26:59,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition01-2.c [2020-10-27 22:26:59,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e421425b1/6f9acee403d94edca4402b671db0e51b/FLAGc499a11d2 [2020-10-27 22:27:00,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e421425b1/6f9acee403d94edca4402b671db0e51b [2020-10-27 22:27:00,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:27:00,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:27:00,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:27:00,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:27:00,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:27:00,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40083056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00, skipping insertion in model container [2020-10-27 22:27:00,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:27:00,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:27:00,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:27:00,542 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:27:00,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:27:00,579 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:27:00,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00 WrapperNode [2020-10-27 22:27:00,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:27:00,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:27:00,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:27:00,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:27:00,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (1/1) ... [2020-10-27 22:27:00,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:27:00,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:27:00,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:27:00,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:27:00,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (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 22:27:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:27:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:27:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:27:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-10-27 22:27:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:27:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:27:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:27:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:27:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:27:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:27:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-10-27 22:27:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:27:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:27:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:27:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:27:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:27:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:27:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:27:01,045 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:27:01,046 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 22:27:01,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:27:01 BoogieIcfgContainer [2020-10-27 22:27:01,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:27:01,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:27:01,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:27:01,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:27:01,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:27:00" (1/3) ... [2020-10-27 22:27:01,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721427f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:27:01, skipping insertion in model container [2020-10-27 22:27:01,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:27:00" (2/3) ... [2020-10-27 22:27:01,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721427f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:27:01, skipping insertion in model container [2020-10-27 22:27:01,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:27:01" (3/3) ... [2020-10-27 22:27:01,058 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2020-10-27 22:27:01,089 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:27:01,096 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:27:01,110 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:27:01,154 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:27:01,155 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:27:01,155 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:27:01,155 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:27:01,155 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:27:01,155 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:27:01,155 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:27:01,156 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:27:01,195 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-27 22:27:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-27 22:27:01,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:27:01,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:27:01,205 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:27:01,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:27:01,220 INFO L82 PathProgramCache]: Analyzing trace with hash 2040802546, now seen corresponding path program 1 times [2020-10-27 22:27:01,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:27:01,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458249503] [2020-10-27 22:27:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:27:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:01,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:01,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:01,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 22:27:01,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:01,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-27 22:27:01,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:01,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:27:01,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 22:27:01,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:27:01,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:27:02,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:27:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:02,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:02,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:02,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:27:02,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:02,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:27:02,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:27:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:27:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:02,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 22:27:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:02,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:02,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:02,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:27:02,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:02,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:27:02,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:27:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:27:02,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:02,137 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 22:27:02,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458249503] [2020-10-27 22:27:02,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:27:02,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:27:02,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261925557] [2020-10-27 22:27:02,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:27:02,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:27:02,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:27:02,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:27:02,164 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 7 states. [2020-10-27 22:27:02,637 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-27 22:27:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:27:02,834 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-10-27 22:27:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:27:02,836 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-27 22:27:02,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:27:02,846 INFO L225 Difference]: With dead ends: 44 [2020-10-27 22:27:02,846 INFO L226 Difference]: Without dead ends: 26 [2020-10-27 22:27:02,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:27:02,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-27 22:27:02,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-27 22:27:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-27 22:27:02,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-10-27 22:27:02,900 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2020-10-27 22:27:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:27:02,900 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-10-27 22:27:02,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:27:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-10-27 22:27:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 22:27:02,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:27:02,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:27:02,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:27:02,904 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:27:02,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:27:02,904 INFO L82 PathProgramCache]: Analyzing trace with hash -165285543, now seen corresponding path program 1 times [2020-10-27 22:27:02,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:27:02,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226533561] [2020-10-27 22:27:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:27:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:02,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:02,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:03,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:03,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 22:27:03,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:27:03,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-27 22:27:03,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:27:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 22:27:03,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:27:03,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:27:03,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:27:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:03,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:03,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:03,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:27:03,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:03,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:27:03,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:27:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:27:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:03,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 22:27:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:03,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:03,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:03,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:27:03,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:27:03,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:03,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:27:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:27:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:27:03,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:03,247 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 22:27:03,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226533561] [2020-10-27 22:27:03,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:27:03,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 22:27:03,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90955003] [2020-10-27 22:27:03,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 22:27:03,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:27:03,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 22:27:03,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:27:03,251 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 5 states. [2020-10-27 22:27:03,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:27:03,430 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2020-10-27 22:27:03,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:27:03,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-27 22:27:03,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:27:03,432 INFO L225 Difference]: With dead ends: 37 [2020-10-27 22:27:03,432 INFO L226 Difference]: Without dead ends: 28 [2020-10-27 22:27:03,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:27:03,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-27 22:27:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-10-27 22:27:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-27 22:27:03,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-10-27 22:27:03,443 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 19 [2020-10-27 22:27:03,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:27:03,444 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-10-27 22:27:03,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 22:27:03,444 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-10-27 22:27:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 22:27:03,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:27:03,446 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:27:03,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:27:03,446 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:27:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:27:03,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1241281567, now seen corresponding path program 1 times [2020-10-27 22:27:03,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:27:03,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90391668] [2020-10-27 22:27:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:27:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:03,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:03,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:03,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 22:27:03,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:03,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-27 22:27:03,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:27:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 22:27:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:27:03,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:27:03,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:27:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:03,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:03,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:03,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:27:03,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:03,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:27:03,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:27:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:27:03,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 22:27:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:03,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:03,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:27:03,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:03,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 22:27:03,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:03,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:27:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 22:27:03,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:04,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:27:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:04,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:04,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:04,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:27:04,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:04,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 22:27:04,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:04,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:27:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:27:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:27:04,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90391668] [2020-10-27 22:27:04,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:27:04,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 22:27:04,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086260791] [2020-10-27 22:27:04,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:27:04,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:27:04,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:27:04,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:27:04,086 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 9 states. [2020-10-27 22:27:04,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:27:04,626 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-10-27 22:27:04,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 22:27:04,627 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-10-27 22:27:04,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:27:04,630 INFO L225 Difference]: With dead ends: 34 [2020-10-27 22:27:04,630 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 22:27:04,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:27:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 22:27:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-10-27 22:27:04,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-27 22:27:04,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-10-27 22:27:04,645 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 24 [2020-10-27 22:27:04,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:27:04,646 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-10-27 22:27:04,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:27:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-10-27 22:27:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 22:27:04,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:27:04,652 INFO L422 BasicCegarLoop]: trace histogram [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 22:27:04,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:27:04,653 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:27:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:27:04,653 INFO L82 PathProgramCache]: Analyzing trace with hash 583251290, now seen corresponding path program 1 times [2020-10-27 22:27:04,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:27:04,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220774192] [2020-10-27 22:27:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:27:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:04,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:04,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:04,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:04,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:05,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:05,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 22:27:05,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:27:05,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-27 22:27:05,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:27:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 22:27:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 22:27:05,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:27:05,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:27:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:05,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:05,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:27:05,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:27:05,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:27:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:27:05,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:05,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 22:27:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:05,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:05,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 22:27:05,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-27 22:27:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:27:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:27:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:05,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 22:27:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:05,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:05,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:05,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:27:05,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:27:05,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:27:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:27:05,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:27:05,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220774192] [2020-10-27 22:27:05,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:27:05,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 22:27:05,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477922715] [2020-10-27 22:27:05,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:27:05,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:27:05,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:27:05,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:27:05,508 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 9 states. [2020-10-27 22:27:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:27:05,965 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2020-10-27 22:27:05,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 22:27:05,967 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-27 22:27:05,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:27:05,969 INFO L225 Difference]: With dead ends: 37 [2020-10-27 22:27:05,969 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 22:27:05,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:27:05,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 22:27:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-27 22:27:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 22:27:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-10-27 22:27:05,979 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 25 [2020-10-27 22:27:05,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:27:05,979 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-27 22:27:05,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:27:05,979 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-10-27 22:27:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 22:27:05,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:27:05,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-27 22:27:05,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:27:05,982 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:27:05,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:27:05,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2098477495, now seen corresponding path program 1 times [2020-10-27 22:27:05,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:27:05,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577243539] [2020-10-27 22:27:05,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:27:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:06,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:06,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:07,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:07,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:08,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 22:27:08,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:27:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2200 [2020-10-27 22:27:08,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:27:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 22:27:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:27:08,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:27:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:08,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:08,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:27:08,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:08,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:27:08,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:27:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:27:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:08,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 22:27:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:08,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:08,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 22:27:08,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:27:08,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-27 22:27:08,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:27:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 22:27:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:27:08,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:08,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:27:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:08,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:08,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 22:27:08,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:27:08,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 22:27:08,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:27:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:27:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 22:27:08,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:27:08,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 22:27:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:08,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:08,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:27:08,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:08,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:27:08,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:27:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:27:08,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 22:27:08,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577243539] [2020-10-27 22:27:08,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:27:08,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:27:08,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959848892] [2020-10-27 22:27:08,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:27:08,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:27:08,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:27:08,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:27:08,595 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 7 states. [2020-10-27 22:27:08,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:27:08,893 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-10-27 22:27:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:27:08,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-10-27 22:27:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:27:08,896 INFO L225 Difference]: With dead ends: 40 [2020-10-27 22:27:08,896 INFO L226 Difference]: Without dead ends: 28 [2020-10-27 22:27:08,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:27:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-27 22:27:08,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-27 22:27:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-27 22:27:08,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-10-27 22:27:08,910 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 32 [2020-10-27 22:27:08,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:27:08,910 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-10-27 22:27:08,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:27:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-10-27 22:27:08,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 22:27:08,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:27:08,914 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-27 22:27:08,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:27:08,915 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:27:08,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:27:08,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1802840755, now seen corresponding path program 2 times [2020-10-27 22:27:08,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:27:08,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87322315] [2020-10-27 22:27:08,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:27:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:08,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:09,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:09,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:10,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 22:27:10,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:27:10,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1436 [2020-10-27 22:27:10,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:10,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:27:10,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 22:27:10,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:27:10,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:27:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:10,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:10,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:27:10,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:10,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:27:10,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:27:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:27:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:10,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 22:27:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:10,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:10,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 22:27:10,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:27:10,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 22:27:10,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:10,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:27:10,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:27:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:27:10,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:27:10,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 22:27:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:10,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:10,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:27:10,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:27:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 22:27:10,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:27:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:27:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 22:27:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:10,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 22:27:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:27:10,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:27:10,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:27:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:27:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:27:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:27:10,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:27:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:27:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:27:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:27:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:27:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 22:27:10,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87322315] [2020-10-27 22:27:10,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:27:10,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 22:27:10,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670747930] [2020-10-27 22:27:10,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 22:27:10,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:27:10,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 22:27:10,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:27:10,665 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 6 states. [2020-10-27 22:27:10,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:27:10,825 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2020-10-27 22:27:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 22:27:10,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-27 22:27:10,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:27:10,827 INFO L225 Difference]: With dead ends: 28 [2020-10-27 22:27:10,827 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 22:27:10,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:27:10,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 22:27:10,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 22:27:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 22:27:10,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 22:27:10,830 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-10-27 22:27:10,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:27:10,830 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 22:27:10,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 22:27:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 22:27:10,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 22:27:10,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:27:10,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 22:27:11,068 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 22:27:11,069 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 22:27:11,069 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 22:27:11,069 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 22:27:11,069 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 22:27:11,069 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 22:27:11,070 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 22:27:11,070 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 22:27:11,070 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 22:27:11,070 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 22:27:11,070 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 22:27:11,070 INFO L274 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-10-27 22:27:11,070 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 28 47) the Hoare annotation is: true [2020-10-27 22:27:11,070 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 28 47) no Hoare annotation was computed. [2020-10-27 22:27:11,071 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: false [2020-10-27 22:27:11,071 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 28 47) no Hoare annotation was computed. [2020-10-27 22:27:11,071 INFO L274 CegarLoopResult]: For program point L45-1(line 45) no Hoare annotation was computed. [2020-10-27 22:27:11,071 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-10-27 22:27:11,073 INFO L277 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: true [2020-10-27 22:27:11,073 INFO L274 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-10-27 22:27:11,073 INFO L274 CegarLoopResult]: For program point L36(lines 36 40) no Hoare annotation was computed. [2020-10-27 22:27:11,073 INFO L270 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (<= (+ addition_~n 1) 0) (= |addition_#in~m| addition_~m) (= |addition_#in~n| addition_~n)) [2020-10-27 22:27:11,073 INFO L274 CegarLoopResult]: For program point L22(lines 22 24) no Hoare annotation was computed. [2020-10-27 22:27:11,074 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-27 22:27:11,074 INFO L274 CegarLoopResult]: For program point additionFINAL(lines 15 25) no Hoare annotation was computed. [2020-10-27 22:27:11,074 INFO L270 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= |addition_#in~m| addition_~m) (= |addition_#in~n| addition_~n) (<= 1 |addition_#in~n|)) [2020-10-27 22:27:11,074 INFO L274 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-10-27 22:27:11,074 INFO L274 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-27 22:27:11,074 INFO L274 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-10-27 22:27:11,074 INFO L277 CegarLoopResult]: At program point additionENTRY(lines 15 25) the Hoare annotation is: true [2020-10-27 22:27:11,074 INFO L274 CegarLoopResult]: For program point additionEXIT(lines 15 25) no Hoare annotation was computed. [2020-10-27 22:27:11,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:27:11 BoogieIcfgContainer [2020-10-27 22:27:11,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:27:11,085 INFO L168 Benchmark]: Toolchain (without parser) took 10754.67 ms. Allocated memory was 157.3 MB in the beginning and 272.6 MB in the end (delta: 115.3 MB). Free memory was 132.6 MB in the beginning and 250.1 MB in the end (delta: -117.5 MB). Peak memory consumption was 152.1 MB. Max. memory is 8.0 GB. [2020-10-27 22:27:11,086 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 157.3 MB. Free memory is still 130.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:27:11,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.67 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 122.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 22:27:11,094 INFO L168 Benchmark]: Boogie Preprocessor took 35.09 ms. Allocated memory is still 157.3 MB. Free memory was 122.4 MB in the beginning and 121.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:27:11,095 INFO L168 Benchmark]: RCFGBuilder took 429.98 ms. Allocated memory is still 157.3 MB. Free memory was 121.0 MB in the beginning and 107.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:27:11,096 INFO L168 Benchmark]: TraceAbstraction took 10032.60 ms. Allocated memory was 157.3 MB in the beginning and 272.6 MB in the end (delta: 115.3 MB). Free memory was 106.7 MB in the beginning and 250.1 MB in the end (delta: -143.4 MB). Peak memory consumption was 125.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:27:11,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 157.3 MB. Free memory is still 130.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.67 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 122.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.09 ms. Allocated memory is still 157.3 MB. Free memory was 122.4 MB in the beginning and 121.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 429.98 ms. Allocated memory is still 157.3 MB. Free memory was 121.0 MB in the beginning and 107.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10032.60 ms. Allocated memory was 157.3 MB in the beginning and 272.6 MB in the end (delta: 115.3 MB). Free memory was 106.7 MB in the beginning and 250.1 MB in the end (delta: -143.4 MB). Peak memory consumption was 125.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.6s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 145 SDslu, 148 SDs, 0 SdLazy, 521 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 21 PreInvPairs, 23 NumberOfFragments, 60 HoareAnnotationTreeSize, 21 FomulaSimplifications, 176 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 194 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 14229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 29/34 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...